264605490 has 24 divisors (see below), whose sum is σ = 687974508. Its totient is φ = 70561440.

The previous prime is 264605489. The next prime is 264605503. The reversal of 264605490 is 94506462.

264605490 is a `hidden beast` number, since 2 + 6 + 4 + 605 + 49 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 225630441 + 38975049 = 15021^2 + 6243^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1469941 + ... + 1470120.

Almost surely, 2^264605490 is an apocalyptic number.

264605490 is an abundant number, since it is smaller than the sum of its proper divisors (423369018).

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

264605490 is a wasteful number, since it uses less digits than its factorization.

264605490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940074 (or 2940071 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 264605490 is about 16266.6988046131. The cubic root of 264605490 is about 641.9969283924.

The spelling of 264605490 in words is "two hundred sixty-four million, six hundred five thousand, four hundred ninety".