342142240 has 96 divisors (see below), whose sum is σ = 894208896. Its totient is φ = 122664960.

The previous prime is 342142231. The next prime is 342142249. The reversal of 342142240 is 42241243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (342142231) and next prime (342142249).

It is a super-2 number, since 2×342142240² = 234122624784435200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (342142249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127149 + ... + 129811.

It is an arithmetic number, because the mean of its divisors is an integer number (9314676).

Almost surely, 2^342142240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342142240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447104448).

342142240 is an abundant number, since it is smaller than the sum of its proper divisors (552066656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342142240 is a wasteful number, since it uses less digits than its factorization.

342142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 342142240 is about 18497.0873382811. The cubic root of 342142240 is about 699.4160027131.

Adding to 342142240 its reverse (42241243), we get a palindrome (384383483).

The spelling of 342142240 in words is "three hundred forty-two million, one hundred forty-two thousand, two hundred forty".