40322312421 has 16 divisors (see below), whose sum is σ = 54337536000. Its totient is φ = 26595496368.

The previous prime is 40322312389. The next prime is 40322312431. The reversal of 40322312421 is 12421322304.

It is a happy number.

40322312421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40322312421 - 2⁵ = 40322312389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40322312391 and 40322312400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40322312431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10621 + ... + 284178.

It is an arithmetic number, because the mean of its divisors is an integer number (3396096000).

Almost surely, 2^40322312421 is an apocalyptic number.

It is an amenable number.

40322312421 is a deficient number, since it is larger than the sum of its proper divisors (14015223579).

40322312421 is a wasteful number, since it uses less digits than its factorization.

40322312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295288.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40322312421 its reverse (12421322304), we get a palindrome (52743634725).

The spelling of 40322312421 in words is "forty billion, three hundred twenty-two million, three hundred twelve thousand, four hundred twenty-one".