40236726738 has 32 divisors (see below), whose sum is σ = 87458817600. Its totient is φ = 12266945856.

The previous prime is 40236726703. The next prime is 40236726749. The reversal of 40236726738 is 83762763204.

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, 2357808 + ... + 2374811.

It is an arithmetic number, because the mean of its divisors is an integer number (2733088050).

Almost surely, 2^40236726738 is an apocalyptic number.

40236726738 is an abundant number, since it is smaller than the sum of its proper divisors (47222090862).

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

40236726738 is a wasteful number, since it uses less digits than its factorization.

40236726738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732746.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 40236726738 in words is "forty billion, two hundred thirty-six million, seven hundred twenty-six thousand, seven hundred thirty-eight".