40251044 has 12 divisors (see below), whose sum is σ = 74146800. Its totient is φ = 19066248.

The previous prime is 40251041. The next prime is 40251047. The reversal of 40251044 is 44015204.

It is an interprime number because it is at equal distance from previous prime (40251041) and next prime (40251047).

It is not an unprimeable number, because it can be changed into a prime (40251041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264734 + ... + 264885.

It is an arithmetic number, because the mean of its divisors is an integer number (6178900).

Almost surely, 2^40251044 is an apocalyptic number.

It is an amenable number.

40251044 is a deficient number, since it is larger than the sum of its proper divisors (33895756).

40251044 is a wasteful number, since it uses less digits than its factorization.

40251044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529642 (or 529640 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40251044 is about 6344.3710484176. The cubic root of 40251044 is about 342.7091630910.

Adding to 40251044 its reverse (44015204), we get a palindrome (84266248).

The spelling of 40251044 in words is "forty million, two hundred fifty-one thousand, forty-four".