40424388 has 24 divisors (see below), whose sum is σ = 94429440. Its totient is φ = 13459680.

The previous prime is 40424369. The next prime is 40424393. The reversal of 40424388 is 88342404.

It is a super-2 number, since 2×40424388² = 3268262290349088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16098 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (3934560).

Almost surely, 2^40424388 is an apocalyptic number.

It is an amenable number.

40424388 is an abundant number, since it is smaller than the sum of its proper divisors (54005052).

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

40424388 is a wasteful number, since it uses less digits than its factorization.

40424388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3785 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 40424388 is about 6358.0176155780. The cubic root of 40424388 is about 343.2004257198.

The spelling of 40424388 in words is "forty million, four hundred twenty-four thousand, three hundred eighty-eight".