40288964 has 36 divisors (see below), whose sum is σ = 74737152. Its totient is φ = 18994320.

The previous prime is 40288961. The next prime is 40288981. The reversal of 40288964 is 46988204.

It is not an unprimeable number, because it can be changed into a prime (40288961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180557 + ... + 180779.

It is an arithmetic number, because the mean of its divisors is an integer number (2076032).

Almost surely, 2^40288964 is an apocalyptic number.

It is an amenable number.

40288964 is a deficient number, since it is larger than the sum of its proper divisors (34448188).

40288964 is a wasteful number, since it uses less digits than its factorization.

40288964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 40288964 is about 6347.3588208010. The cubic root of 40288964 is about 342.8167499702.

The spelling of 40288964 in words is "forty million, two hundred eighty-eight thousand, nine hundred sixty-four".