264606642 has 16 divisors (see below), whose sum is σ = 588014880. Its totient is φ = 88202196.

The previous prime is 264606637. The next prime is 264606653. The reversal of 264606642 is 246606462.

264606642 is a `hidden beast` number, since 2 + 6 + 4 + 6 + 0 + 6 + 642 = 666.

264606642 is a modest number, since divided by 6642 gives 2646 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 264606597 and 264606606.

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, 2450008 + ... + 2450115.

It is an arithmetic number, because the mean of its divisors is an integer number (36750930).

Almost surely, 2^264606642 is an apocalyptic number.

264606642 is an abundant number, since it is smaller than the sum of its proper divisors (323408238).

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

264606642 is a wasteful number, since it uses less digits than its factorization.

264606642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900134 (or 4900128 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 264606642 is about 16266.7342143406. The cubic root of 264606642 is about 641.9978600680.

The spelling of 264606642 in words is "two hundred sixty-four million, six hundred six thousand, six hundred forty-two".