40740572420 has 48 divisors (see below), whose sum is σ = 90628454448. Its totient is φ = 15330754560.

The previous prime is 40740572413. The next prime is 40740572429. The reversal of 40740572420 is 2427504704.

It can be written as a sum of positive squares in 8 ways, for example, as 3540964036 + 37199608384 = 59506^2 + 192872^2 .

It is a super-2 number, since 2×40740572420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40740572429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767540 + ... + 818900.

It is an arithmetic number, because the mean of its divisors is an integer number (1888092801).

Almost surely, 2^40740572420 is an apocalyptic number.

It is an amenable number.

40740572420 is an abundant number, since it is smaller than the sum of its proper divisors (49887882028).

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

40740572420 is a wasteful number, since it uses less digits than its factorization.

40740572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53720 (or 53718 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 35.

The spelling of 40740572420 in words is "forty billion, seven hundred forty million, five hundred seventy-two thousand, four hundred twenty".