40618893 has 12 divisors (see below), whose sum is σ = 63000960. Its totient is φ = 23210712.

The previous prime is 40618891. The next prime is 40618927. The reversal of 40618893 is 39881604.

It is not a de Polignac number, because 40618893 - 2¹ = 40618891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40618891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138013 + ... + 138306.

It is an arithmetic number, because the mean of its divisors is an integer number (5250080).

Almost surely, 2^40618893 is an apocalyptic number.

It is an amenable number.

40618893 is a deficient number, since it is larger than the sum of its proper divisors (22382067).

40618893 is a wasteful number, since it uses less digits than its factorization.

40618893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276336 (or 276329 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 40618893 is about 6373.2953014904. The cubic root of 40618893 is about 343.7499901708.

The spelling of 40618893 in words is "forty million, six hundred eighteen thousand, eight hundred ninety-three".