40864280 has 32 divisors (see below), whose sum is σ = 94433040. Its totient is φ = 15903360.

The previous prime is 40864279. The next prime is 40864309. The reversal of 40864280 is 8246804.

It is a congruent number.

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, 12326 + ... + 15285.

Almost surely, 2^40864280 is an apocalyptic number.

40864280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40864280 is an abundant number, since it is smaller than the sum of its proper divisors (53568760).

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

40864280 is a wasteful number, since it uses less digits than its factorization.

40864280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27659 (or 27655 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 40864280 is about 6392.5175009538. The cubic root of 40864280 is about 344.4408220993.

The spelling of 40864280 in words is "forty million, eight hundred sixty-four thousand, two hundred eighty".