40618694 has 8 divisors (see below), whose sum is σ = 64134840. Its totient is φ = 19240416.

The previous prime is 40618687. The next prime is 40618717. The reversal of 40618694 is 49681604.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1068913 = 40618694 / (4 + 0 + 6 + 1 + 8 + 6 + 9 + 4).

It is a congruent number.

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, 534419 + ... + 534494.

It is an arithmetic number, because the mean of its divisors is an integer number (8016855).

Almost surely, 2^40618694 is an apocalyptic number.

40618694 is a deficient number, since it is larger than the sum of its proper divisors (23516146).

40618694 is a wasteful number, since it uses less digits than its factorization.

40618694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068934.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40618694 is about 6373.2796894535. The cubic root of 40618694 is about 343.7494288035.

The spelling of 40618694 in words is "forty million, six hundred eighteen thousand, six hundred ninety-four".