40069584 has 30 divisors (see below), whose sum is σ = 112139586. Its totient is φ = 13356480.

The previous prime is 40069571. The next prime is 40069591. The reversal of 40069584 is 48596004.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 4928400 = 5928^2 + 2220^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138987 + ... + 139274.

Almost surely, 2^40069584 is an apocalyptic number.

It is an amenable number.

40069584 is an abundant number, since it is smaller than the sum of its proper divisors (72070002).

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

40069584 is a wasteful number, since it uses less digits than its factorization.

40069584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278275 (or 278266 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 40069584 is about 6330.0540282054. The cubic root of 40069584 is about 342.1933860625.

The spelling of 40069584 in words is "forty million, sixty-nine thousand, five hundred eighty-four".