40887388 has 24 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 19642560.

The previous prime is 40887383. The next prime is 40887389. The reversal of 40887388 is 88378804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40887383) 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, 17370 + ... + 19582.

It is an arithmetic number, because the mean of its divisors is an integer number (3099600).

Almost surely, 2^40887388 is an apocalyptic number.

It is an amenable number.

40887388 is a deficient number, since it is larger than the sum of its proper divisors (33503012).

40887388 is a wasteful number, since it uses less digits than its factorization.

40887388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 40887388 is about 6394.3246711439. The cubic root of 40887388 is about 344.5057348520.

It can be divided in two parts, 4088 and 7388, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 40887388 in words is "forty million, eight hundred eighty-seven thousand, three hundred eighty-eight".