40000450016 has 48 divisors (see below), whose sum is σ = 84956621904. Its totient is φ = 18468562944.

The previous prime is 40000449901. The next prime is 40000450031. The reversal of 40000450016 is 61005400004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40000450016.

It is a congruent number.

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, 664850 + ... + 722513.

It is an arithmetic number, because the mean of its divisors is an integer number (1769929623).

Almost surely, 2^40000450016 is an apocalyptic number.

It is an amenable number.

40000450016 is an abundant number, since it is smaller than the sum of its proper divisors (44956171888).

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

40000450016 is a wasteful number, since it uses less digits than its factorization.

40000450016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387443 (or 1387435 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The spelling of 40000450016 in words is "forty billion, four hundred fifty thousand, sixteen".