36640626 has 64 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 10324800.

The previous prime is 36640613. The next prime is 36640631. The reversal of 36640626 is 62604663.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76255 + ... + 76733.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^36640626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36640626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42854400).

36640626 is an abundant number, since it is smaller than the sum of its proper divisors (49068174).

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

36640626 is a wasteful number, since it uses less digits than its factorization.

36640626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 36640626 is about 6053.1500890032. The cubic root of 36640626 is about 332.1398319861.

The spelling of 36640626 in words is "thirty-six million, six hundred forty thousand, six hundred twenty-six".