40404536 has 8 divisors (see below), whose sum is σ = 75758520. Its totient is φ = 20202264.

The previous prime is 40404527. The next prime is 40404547. The reversal of 40404536 is 63540404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525276 + ... + 2525291.

It is an arithmetic number, because the mean of its divisors is an integer number (9469815).

Almost surely, 2^40404536 is an apocalyptic number.

It is an amenable number.

40404536 is a deficient number, since it is larger than the sum of its proper divisors (35353984).

40404536 is a wasteful number, since it uses less digits than its factorization.

40404536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050573 (or 5050569 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40404536 is about 6356.4562454248. The cubic root of 40404536 is about 343.1442357910.

The spelling of 40404536 in words is "forty million, four hundred four thousand, five hundred thirty-six".