40912440 has 32 divisors (see below), whose sum is σ = 122737680. Its totient is φ = 10909952.

The previous prime is 40912433. The next prime is 40912451. The reversal of 40912440 is 4421904.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40912440.

It is a congruent number.

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, 170349 + ... + 170588.

Almost surely, 2^40912440 is an apocalyptic number.

40912440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40912440 is an abundant number, since it is smaller than the sum of its proper divisors (81825240).

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

40912440 is a wasteful number, since it uses less digits than its factorization.

40912440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340951 (or 340947 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40912440 is about 6396.2832957898. The cubic root of 40912440 is about 344.5760808766.

The spelling of 40912440 in words is "forty million, nine hundred twelve thousand, four hundred forty".