40251994 has 8 divisors (see below), whose sum is σ = 63555840. Its totient is φ = 19066716.

The previous prime is 40251989. The next prime is 40252019. The reversal of 40251994 is 49915204.

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

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, 529594 + ... + 529669.

It is an arithmetic number, because the mean of its divisors is an integer number (7944480).

Almost surely, 2^40251994 is an apocalyptic number.

40251994 is a deficient number, since it is larger than the sum of its proper divisors (23303846).

40251994 is a wasteful number, since it uses less digits than its factorization.

40251994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059284.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 40251994 is about 6344.4459174935. The cubic root of 40251994 is about 342.7118592625.

The spelling of 40251994 in words is "forty million, two hundred fifty-one thousand, nine hundred ninety-four".