40430636 has 6 divisors (see below), whose sum is σ = 70753620. Its totient is φ = 20215316.

The previous prime is 40430623. The next prime is 40430647. The reversal of 40430636 is 63603404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053826 + ... + 5053833.

It is an arithmetic number, because the mean of its divisors is an integer number (11792270).

Almost surely, 2^40430636 is an apocalyptic number.

It is an amenable number.

40430636 is a deficient number, since it is larger than the sum of its proper divisors (30322984).

40430636 is a wasteful number, since it uses less digits than its factorization.

40430636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107663 (or 10107661 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 40430636 is about 6358.5089447134. The cubic root of 40430636 is about 343.2181065135.

The spelling of 40430636 in words is "forty million, four hundred thirty thousand, six hundred thirty-six".