40386836 has 24 divisors (see below), whose sum is σ = 81278400. Its totient is φ = 17200512.

The previous prime is 40386833. The next prime is 40386839. The reversal of 40386836 is 63868304.

It is an interprime number because it is at equal distance from previous prime (40386833) and next prime (40386839).

It is a self number, because there is not a number n which added to its sum of digits gives 40386836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40386833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (3386600).

Almost surely, 2^40386836 is an apocalyptic number.

It is an amenable number.

40386836 is an abundant number, since it is smaller than the sum of its proper divisors (40891564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40386836 is a wasteful number, since it uses less digits than its factorization.

40386836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 40386836 is about 6355.0638077048. The cubic root of 40386836 is about 343.0941214500.

The spelling of 40386836 in words is "forty million, three hundred eighty-six thousand, eight hundred thirty-six".