40864488 has 64 divisors (see below), whose sum is σ = 118272000. Its totient is φ = 11524032.

The previous prime is 40864487. The next prime is 40864489. The reversal of 40864488 is 88446804.

It is an interprime number because it is at equal distance from previous prime (40864487) and next prime (40864489).

It is a super-5 number, since 5×40864488⁵ (a number of 39 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (40864487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11733 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (1848000).

Almost surely, 2^40864488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40864488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59136000).

40864488 is an abundant number, since it is smaller than the sum of its proper divisors (77407512).

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

40864488 is a wasteful number, since it uses less digits than its factorization.

40864488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 40864488 is about 6392.5337699538. The cubic root of 40864488 is about 344.4414065019.

The spelling of 40864488 in words is "forty million, eight hundred sixty-four thousand, four hundred eighty-eight".