40740572421 has 12 divisors (see below), whose sum is σ = 58940762400. Its totient is φ = 27117334440.

The previous prime is 40740572413. The next prime is 40740572429. The reversal of 40740572421 is 12427504704.

40740572421 is a `hidden beast` number, since 4 + 0 + 7 + 40 + 572 + 42 + 1 = 666.

40740572421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40740572413) and next prime (40740572429).

It is not a de Polignac number, because 40740572421 - 2³ = 40740572413 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3581271 + ... + 3592628.

It is an arithmetic number, because the mean of its divisors is an integer number (4911730200).

Almost surely, 2^40740572421 is an apocalyptic number.

It is an amenable number.

40740572421 is a deficient number, since it is larger than the sum of its proper divisors (18200189979).

40740572421 is a wasteful number, since it uses less digits than its factorization.

40740572421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7174536 (or 7174533 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The spelling of 40740572421 in words is "forty billion, seven hundred forty million, five hundred seventy-two thousand, four hundred twenty-one".