40144974 has 8 divisors (see below), whose sum is σ = 80289960. Its totient is φ = 13381656.

The previous prime is 40144927. The next prime is 40144987. The reversal of 40144974 is 47944104.

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

40144974 is an admirable number.

It is a super-2 number, since 2×40144974² = 3223237874921352, which contains 22 as substring.

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, 3345409 + ... + 3345420.

It is an arithmetic number, because the mean of its divisors is an integer number (10036245).

Almost surely, 2^40144974 is an apocalyptic number.

40144974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40144974 is a wasteful number, since it uses less digits than its factorization.

40144974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690834.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40144974 is about 6336.0061553000. The cubic root of 40144974 is about 342.4078612685.

The spelling of 40144974 in words is "forty million, one hundred forty-four thousand, nine hundred seventy-four".