40591488 has 64 divisors (see below), whose sum is σ = 123232320. Its totient is φ = 11596800.

The previous prime is 40591487. The next prime is 40591513. The reversal of 40591488 is 88419504.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (40591483) 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, 4863 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (1925505).

Almost surely, 2^40591488 is an apocalyptic number.

40591488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40591488 is an abundant number, since it is smaller than the sum of its proper divisors (82640832).

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

40591488 is a wasteful number, since it uses less digits than its factorization.

40591488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15125 (or 15113 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 40591488 is about 6371.1449520475. The cubic root of 40591488 is about 343.6726650051.

The spelling of 40591488 in words is "forty million, five hundred ninety-one thousand, four hundred eighty-eight".