342443720 has 32 divisors (see below), whose sum is σ = 775683000. Its totient is φ = 136055808.

The previous prime is 342443719. The next prime is 342443771. The reversal of 342443720 is 27344243.

It can be written as a sum of positive squares in 4 ways, for example, as 246050596 + 96393124 = 15686^2 + 9818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22769 + ... + 34688.

Almost surely, 2^342443720 is an apocalyptic number.

It is an amenable number.

342443720 is an abundant number, since it is smaller than the sum of its proper divisors (433239280).

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

342443720 is a wasteful number, since it uses less digits than its factorization.

342443720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57617 (or 57613 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 29.

The square root of 342443720 is about 18505.2349350123. The cubic root of 342443720 is about 699.6213734710.

Adding to 342443720 its reverse (27344243), we get a palindrome (369787963).

The spelling of 342443720 in words is "three hundred forty-two million, four hundred forty-three thousand, seven hundred twenty".