340442042 has 8 divisors (see below), whose sum is σ = 514684416. Its totient is φ = 168880572.

The previous prime is 340442041. The next prime is 340442077. The reversal of 340442042 is 240244043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×340442042² = 231801567922259528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340441999 and 340442017.

It is not an unprimeable number, because it can be changed into a prime (340442041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669908 + ... + 670415.

It is an arithmetic number, because the mean of its divisors is an integer number (64335552).

Almost surely, 2^340442042 is an apocalyptic number.

340442042 is a deficient number, since it is larger than the sum of its proper divisors (174242374).

340442042 is a wasteful number, since it uses less digits than its factorization.

340442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340452.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 340442042 is about 18451.0715677979. The cubic root of 340442042 is about 698.2555488284.

Adding to 340442042 its reverse (240244043), we get a palindrome (580686085).

The spelling of 340442042 in words is "three hundred forty million, four hundred forty-two thousand, forty-two".