40000624636 has 48 divisors (see below), whose sum is σ = 83176128000. Its totient is φ = 16468740288.

The previous prime is 40000624613. The next prime is 40000624681. The reversal of 40000624636 is 63642600004.

40000624636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40000624598 and 40000624607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37815 + ... + 285361.

It is an arithmetic number, because the mean of its divisors is an integer number (1732836000).

Almost surely, 2^40000624636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40000624636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41588064000).

40000624636 is an abundant number, since it is smaller than the sum of its proper divisors (43175503364).

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

40000624636 is a wasteful number, since it uses less digits than its factorization.

40000624636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247786 (or 247784 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 40000624636 in words is "forty billion, six hundred twenty-four thousand, six hundred thirty-six".