40502187 has 40 divisors (see below), whose sum is σ = 66699072. Its totient is φ = 24289200.

The previous prime is 40502159. The next prime is 40502191. The reversal of 40502187 is 78120504.

It is not a de Polignac number, because 40502187 - 2¹⁰ = 40501163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40502187.

It is not an unprimeable number, because it can be changed into a prime (40502107) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 116548 + ... + 116894.

Almost surely, 2^40502187 is an apocalyptic number.

40502187 is a deficient number, since it is larger than the sum of its proper divisors (26196885).

40502187 is a wasteful number, since it uses less digits than its factorization.

40502187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 40502187 is about 6364.1328553072. The cubic root of 40502187 is about 343.4204541116.

The spelling of 40502187 in words is "forty million, five hundred two thousand, one hundred eighty-seven".