40364218 has 16 divisors (see below), whose sum is σ = 63317376. Its totient is φ = 19262320.

The previous prime is 40364197. The next prime is 40364231. The reversal of 40364218 is 81246304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33588 + ... + 34768.

It is an arithmetic number, because the mean of its divisors is an integer number (3957336).

Almost surely, 2^40364218 is an apocalyptic number.

40364218 is a deficient number, since it is larger than the sum of its proper divisors (22953158).

40364218 is a wasteful number, since it uses less digits than its factorization.

40364218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40364218 is about 6353.2840326873. The cubic root of 40364218 is about 343.0300613692.

The spelling of 40364218 in words is "forty million, three hundred sixty-four thousand, two hundred eighteen".