40418901 has 6 divisors (see below), whose sum is σ = 58382870. Its totient is φ = 26945928.

The previous prime is 40418899. The next prime is 40418923. The reversal of 40418901 is 10981404.

It can be written as a sum of positive squares in only one way, i.e., 39050001 + 1368900 = 6249^2 + 1170^2 .

It is not a de Polignac number, because 40418901 - 2¹ = 40418899 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40418941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2245486 + ... + 2245503.

Almost surely, 2^40418901 is an apocalyptic number.

It is an amenable number.

40418901 is a deficient number, since it is larger than the sum of its proper divisors (17963969).

40418901 is a wasteful number, since it uses less digits than its factorization.

40418901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490995 (or 4490992 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 40418901 is about 6357.5860985125. The cubic root of 40418901 is about 343.1848969261.

The spelling of 40418901 in words is "forty million, four hundred eighteen thousand, nine hundred one".