562646640 has 40 divisors (see below), whose sum is σ = 1744205328. Its totient is φ = 150039040.

The previous prime is 562646627. The next prime is 562646641. The reversal of 562646640 is 46646265.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (562646641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171941 + ... + 1172420.

Almost surely, 2^562646640 is an apocalyptic number.

It is an amenable number.

562646640 is an abundant number, since it is smaller than the sum of its proper divisors (1181558688).

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

562646640 is a wasteful number, since it uses less digits than its factorization.

562646640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344377 (or 2344371 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 562646640 is about 23720.1736924501. The cubic root of 562646640 is about 825.5535385262.

The spelling of 562646640 in words is "five hundred sixty-two million, six hundred forty-six thousand, six hundred forty".