40454536 has 32 divisors (see below), whose sum is σ = 80400600. Its totient is φ = 19048960.

The previous prime is 40454527. The next prime is 40454549. The reversal of 40454536 is 63545404.

It can be written as a sum of positive squares in 4 ways, for example, as 15952036 + 24502500 = 3994^2 + 4950^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40454498 and 40454507.

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, 7386 + ... + 11638.

Almost surely, 2^40454536 is an apocalyptic number.

It is an amenable number.

40454536 is a deficient number, since it is larger than the sum of its proper divisors (39946064).

40454536 is a wasteful number, since it uses less digits than its factorization.

40454536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329 (or 4325 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 40454536 is about 6360.3880384769. The cubic root of 40454536 is about 343.2857227055.

The spelling of 40454536 in words is "forty million, four hundred fifty-four thousand, five hundred thirty-six".