40023476140921 has 81 divisors (see below), whose sum is σ = 53222399233551. Its totient is φ = 29992046823648.

The previous prime is 40023476140871. The next prime is 40023476140957. The reversal of 40023476140921 is 12904167432004.

The square root of 40023476140921 is 6326411.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5920632565225 + 34102843575696 = 2433235^2 + 5839764^2 .

It is not a de Polignac number, because 40023476140921 - 2¹³ = 40023476132729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40023476140961) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10938362790 + ... + 10938366448.

Almost surely, 2^{40023476140921} is an apocalyptic number.

40023476140921 is the 6326411-st square number.

40023476140921 is the 3163206-th centered octagonal number.

It is an amenable number.

40023476140921 is a deficient number, since it is larger than the sum of its proper divisors (13198923092630).

40023476140921 is an frugal number, since it uses more digits than its factorization.

40023476140921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7396 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 40023476140921 in words is "forty trillion, twenty-three billion, four hundred seventy-six million, one hundred forty thousand, nine hundred twenty-one".