40396794722 has 16 divisors (see below), whose sum is σ = 61881812352. Its totient is φ = 19771293360.

The previous prime is 40396794703. The next prime is 40396794743. The reversal of 40396794722 is 22749769304.

It is a super-2 number, since 2×40396794722² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396428 + ... + 487799.

It is an arithmetic number, because the mean of its divisors is an integer number (3867613272).

Almost surely, 2^40396794722 is an apocalyptic number.

40396794722 is a deficient number, since it is larger than the sum of its proper divisors (21485017630).

40396794722 is a wasteful number, since it uses less digits than its factorization.

40396794722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884713.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 40396794722 in words is "forty billion, three hundred ninety-six million, seven hundred ninety-four thousand, seven hundred twenty-two".