40425372421 has 8 divisors (see below), whose sum is σ = 47449086080. Its totient is φ = 33713823888.

The previous prime is 40425372397. The next prime is 40425372451. The reversal of 40425372421 is 12427352404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40425372421 - 2¹¹ = 40425370373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425372451) 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, 78041001 + ... + 78041518.

It is an arithmetic number, because the mean of its divisors is an integer number (5931135760).

Almost surely, 2^40425372421 is an apocalyptic number.

It is an amenable number.

40425372421 is a deficient number, since it is larger than the sum of its proper divisors (7023713659).

40425372421 is a wasteful number, since it uses less digits than its factorization.

40425372421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156082563.

The product of its (nonzero) digits is 53760, while the sum is 34.

It can be divided in two parts, 404253 and 72421, that added together give a palindrome (476674).

The spelling of 40425372421 in words is "forty billion, four hundred twenty-five million, three hundred seventy-two thousand, four hundred twenty-one".