40374621 has 24 divisors (see below), whose sum is σ = 67570880. Its totient is φ = 22752576.

The previous prime is 40374599. The next prime is 40374623. The reversal of 40374621 is 12647304.

40374621 is a `hidden beast` number, since 4 + 0 + 37 + 4 + 621 = 666.

It is not a de Polignac number, because 40374621 - 2⁶ = 40374557 is a prime.

It is a super-2 number, since 2×40374621² = 3260220041787282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40374623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210 + ... + 8988.

Almost surely, 2^40374621 is an apocalyptic number.

It is an amenable number.

40374621 is a deficient number, since it is larger than the sum of its proper divisors (27196259).

40374621 is a wasteful number, since it uses less digits than its factorization.

40374621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8865 (or 8862 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40374621 is about 6354.1026903883. The cubic root of 40374621 is about 343.0595283524.

The spelling of 40374621 in words is "forty million, three hundred seventy-four thousand, six hundred twenty-one".