40122605720740 has 24 divisors (see below), whose sum is σ = 84496161750840. Its totient is φ = 16003577576448.

The previous prime is 40122605720723. The next prime is 40122605720749. The reversal of 40122605720740 is 4702750622104.

It can be written as a sum of positive squares in 4 ways, for example, as 6520086474916 + 33602519245824 = 2553446^2 + 5796768^2 .

It is a super-2 number, since 2×40122605720740² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40122605720693 and 40122605720702.

It is not an unprimeable number, because it can be changed into a prime (40122605720749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2841537255 + ... + 2841551374.

It is an arithmetic number, because the mean of its divisors is an integer number (3520673406285).

Almost surely, 2^{40122605720740} is an apocalyptic number.

It is an amenable number.

40122605720740 is an abundant number, since it is smaller than the sum of its proper divisors (44373556030100).

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

40122605720740 is a wasteful number, since it uses less digits than its factorization.

40122605720740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683088991 (or 5683088989 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 40122605720740 in words is "forty trillion, one hundred twenty-two billion, six hundred five million, seven hundred twenty thousand, seven hundred forty".