451640036 has 12 divisors (see below), whose sum is σ = 790648320. Its totient is φ = 225740520.

The previous prime is 451640011. The next prime is 451640039. The reversal of 451640036 is 630046154.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 451639990 and 451640008.

It is not an unprimeable number, because it can be changed into a prime (451640039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 30651.

It is an arithmetic number, because the mean of its divisors is an integer number (65887360).

Almost surely, 2^451640036 is an apocalyptic number.

It is an amenable number.

451640036 is a deficient number, since it is larger than the sum of its proper divisors (339008284).

451640036 is a wasteful number, since it uses less digits than its factorization.

451640036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39754 (or 39752 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 451640036 is about 21251.8242981632. The cubic root of 451640036 is about 767.2392482140.

The spelling of 451640036 in words is "four hundred fifty-one million, six hundred forty thousand, thirty-six".