40000000050 has 72 divisors (see below), whose sum is σ = 107895125520. Its totient is φ = 10624140000.

The previous prime is 40000000031. The next prime is 40000000069. The reversal of 40000000050 is 5000000004.

It is an interprime number because it is at equal distance from previous prime (40000000031) and next prime (40000000069).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64120 + ... + 290019.

It is an arithmetic number, because the mean of its divisors is an integer number (1498543410).

Almost surely, 2^40000000050 is an apocalyptic number.

40000000050 is an abundant number, since it is smaller than the sum of its proper divisors (67895125470).

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

40000000050 is a wasteful number, since it uses less digits than its factorization.

40000000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354408 (or 354400 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

Adding to 40000000050 its reverse (5000000004), we get a palindrome (45000000054).

The spelling of 40000000050 in words is "forty billion, fifty", and thus it is an aban number, an eban number, and an uban number.