40621164490 has 32 divisors (see below), whose sum is σ = 75653228880. Its totient is φ = 15685307904.

The previous prime is 40621164443. The next prime is 40621164497. The reversal of 40621164490 is 9446112604.

It can be written as a sum of positive squares in 8 ways, for example, as 6140759769 + 34480404721 = 78363^2 + 185689^2 .

It is a super-3 number, since 3×40621164490³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40621164497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2291742 + ... + 2309398.

Almost surely, 2^40621164490 is an apocalyptic number.

40621164490 is a deficient number, since it is larger than the sum of its proper divisors (35032064390).

40621164490 is a wasteful number, since it uses less digits than its factorization.

40621164490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25626.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 40621164490 in words is "forty billion, six hundred twenty-one million, one hundred sixty-four thousand, four hundred ninety".