40894951 has 4 divisors (see below), whose sum is σ = 41131512. Its totient is φ = 40658392.

The previous prime is 40894933. The next prime is 40894957. The reversal of 40894951 is 15949804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40894951 - 2⁷ = 40894823 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40894957) 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 3 ways as a sum of consecutive naturals, for example, 118021 + ... + 118366.

It is an arithmetic number, because the mean of its divisors is an integer number (10282878).

Almost surely, 2^40894951 is an apocalyptic number.

40894951 is the 4045-th centered pentagonal number.

40894951 is a deficient number, since it is larger than the sum of its proper divisors (236561).

40894951 is a wasteful number, since it uses less digits than its factorization.

40894951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236560.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 40894951 is about 6394.9160275957. The cubic root of 40894951 is about 344.5269747858.

It can be divided in two parts, 408 and 94951, that added together give a palindrome (95359).

The spelling of 40894951 in words is "forty million, eight hundred ninety-four thousand, nine hundred fifty-one".