40007974 has 8 divisors (see below), whose sum is σ = 61407720. Its totient is φ = 19538736.

The previous prime is 40007963. The next prime is 40007983. The reversal of 40007974 is 47970004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232519 + ... + 232690.

It is an arithmetic number, because the mean of its divisors is an integer number (7675965).

Almost surely, 2^40007974 is an apocalyptic number.

40007974 is a deficient number, since it is larger than the sum of its proper divisors (21399746).

40007974 is a wasteful number, since it uses less digits than its factorization.

40007974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465254.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40007974 is about 6325.1856889739. The cubic root of 40007974 is about 342.0179134057.

Adding to 40007974 its reverse (47970004), we get a palindrome (87977978).

The spelling of 40007974 in words is "forty million, seven thousand, nine hundred seventy-four".