40390492722 has 32 divisors (see below), whose sum is σ = 81178663104. Its totient is φ = 13397280000.

The previous prime is 40390492699. The next prime is 40390492739. The reversal of 40390492722 is 22729409304.

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, 3100222 + ... + 3113222.

It is an arithmetic number, because the mean of its divisors is an integer number (2536833222).

Almost surely, 2^40390492722 is an apocalyptic number.

40390492722 is an abundant number, since it is smaller than the sum of its proper divisors (40788170382).

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

40390492722 is a wasteful number, since it uses less digits than its factorization.

40390492722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15514.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 40390492722 in words is "forty billion, three hundred ninety million, four hundred ninety-two thousand, seven hundred twenty-two".