642461032 has 16 divisors (see below), whose sum is σ = 1205115300. Its totient is φ = 321096960.

The previous prime is 642461023. The next prime is 642461033. The reversal of 642461032 is 230164246.

It can be written as a sum of positive squares in 2 ways, for example, as 625700196 + 16760836 = 25014^2 + 4094^2 .

It is not an unprimeable number, because it can be changed into a prime (642461033) 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, 5482 + ... + 36262.

Almost surely, 2^642461032 is an apocalyptic number.

It is an amenable number.

642461032 is a deficient number, since it is larger than the sum of its proper divisors (562654268).

642461032 is a wasteful number, since it uses less digits than its factorization.

642461032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33396 (or 33392 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 642461032 is about 25346.8150267445. The cubic root of 642461032 is about 862.8770741353.

The spelling of 642461032 in words is "six hundred forty-two million, four hundred sixty-one thousand, thirty-two".