264500940 has 48 divisors (see below), whose sum is σ = 807932160. Its totient is φ = 64121280.

The previous prime is 264500923. The next prime is 264500981. The reversal of 264500940 is 49005462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 264500898 and 264500907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199720 + ... + 201039.

It is an arithmetic number, because the mean of its divisors is an integer number (16831920).

Almost surely, 2^264500940 is an apocalyptic number.

264500940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264500940 is an abundant number, since it is smaller than the sum of its proper divisors (543431220).

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

264500940 is a wasteful number, since it uses less digits than its factorization.

264500940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400782 (or 400780 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 264500940 is about 16263.4848664116. The cubic root of 264500940 is about 641.9123627233.

The spelling of 264500940 in words is "two hundred sixty-four million, five hundred thousand, nine hundred forty".