342404520 has 32 divisors (see below), whose sum is σ = 1027213920. Its totient is φ = 91307840.

The previous prime is 342404509. The next prime is 342404527. The reversal of 342404520 is 25404243.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (342404527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426566 + ... + 1426805.

It is an arithmetic number, because the mean of its divisors is an integer number (32100435).

Almost surely, 2^342404520 is an apocalyptic number.

342404520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342404520 is an abundant number, since it is smaller than the sum of its proper divisors (684809400).

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

342404520 is a wasteful number, since it uses less digits than its factorization.

342404520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853385 (or 2853381 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 342404520 is about 18504.1757449501. The cubic root of 342404520 is about 699.5946769145.

Adding to 342404520 its reverse (25404243), we get a palindrome (367808763).

The spelling of 342404520 in words is "three hundred forty-two million, four hundred four thousand, five hundred twenty".