40308720826 has 32 divisors (see below), whose sum is σ = 67385011968. Its totient is φ = 17926487040.

The previous prime is 40308720811. The next prime is 40308720847. The reversal of 40308720826 is 62802780304.

It is a super-2 number, since 2×40308720826² (a number of 22 digits) contains 22 as substring.

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, 5448586 + ... + 5455978.

It is an arithmetic number, because the mean of its divisors is an integer number (2105781624).

Almost surely, 2^40308720826 is an apocalyptic number.

40308720826 is a deficient number, since it is larger than the sum of its proper divisors (27076291142).

40308720826 is a wasteful number, since it uses less digits than its factorization.

40308720826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12726.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 40308720826 in words is "forty billion, three hundred eight million, seven hundred twenty thousand, eight hundred twenty-six".