40974840 has 48 divisors (see below), whose sum is σ = 133169400. Its totient is φ = 10926528.

The previous prime is 40974833. The next prime is 40974853. The reversal of 40974840 is 4847904.

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

It is a junction number, because it is equal to n+sod(n) for n = 40974795 and 40974804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56550 + ... + 57269.

Almost surely, 2^40974840 is an apocalyptic number.

40974840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40974840 is an abundant number, since it is smaller than the sum of its proper divisors (92194560).

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

40974840 is a wasteful number, since it uses less digits than its factorization.

40974840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113836 (or 113829 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40974840 is about 6401.1592700073. The cubic root of 40974840 is about 344.7511753405.

It can be divided in two parts, 40974 and 840, that added together give a palindrome (41814).

The spelling of 40974840 in words is "forty million, nine hundred seventy-four thousand, eight hundred forty".