342405632 has 20 divisors (see below), whose sum is σ = 684143526. Its totient is φ = 171202560.

The previous prime is 342405563. The next prime is 342405649. The reversal of 342405632 is 236504243.

It can be written as a sum of positive squares in only one way, i.e., 230553856 + 111851776 = 15184^2 + 10576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 342405595 and 342405604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333869 + ... + 334892.

Almost surely, 2^342405632 is an apocalyptic number.

342405632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

342405632 is a deficient number, since it is larger than the sum of its proper divisors (341737894).

342405632 is an frugal number, since it uses more digits than its factorization.

342405632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668779 (or 668763 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 342405632 is about 18504.2057921976. The cubic root of 342405632 is about 699.5954342531.

Adding to 342405632 its reverse (236504243), we get a palindrome (578909875).

The spelling of 342405632 in words is "three hundred forty-two million, four hundred five thousand, six hundred thirty-two".