264212940 has 48 divisors (see below), whose sum is σ = 743914080. Its totient is φ = 70064640.

The previous prime is 264212911. The next prime is 264212953. The reversal of 264212940 is 49212462.

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 = 264212898 and 264212907.

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, 1305 + ... + 23024.

It is an arithmetic number, because the mean of its divisors is an integer number (15498210).

Almost surely, 2^264212940 is an apocalyptic number.

264212940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264212940 is an abundant number, since it is smaller than the sum of its proper divisors (479701140).

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

264212940 is a wasteful number, since it uses less digits than its factorization.

264212940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24522 (or 24520 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 264212940 is about 16254.6282639745. The cubic root of 264212940 is about 641.6792975157.

The spelling of 264212940 in words is "two hundred sixty-four million, two hundred twelve thousand, nine hundred forty".