31422000344 has 32 divisors (see below), whose sum is σ = 70260376320. Its totient is φ = 12881067936.

The previous prime is 31422000307. The next prime is 31422000347. The reversal of 31422000344 is 44300022413.

It is a super-2 number, since 2×31422000344² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422000347) 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, 12196694 + ... + 12199269.

It is an arithmetic number, because the mean of its divisors is an integer number (2195636760).

Almost surely, 2^31422000344 is an apocalyptic number.

It is an amenable number.

31422000344 is an abundant number, since it is smaller than the sum of its proper divisors (38838375976).

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

31422000344 is a wasteful number, since it uses less digits than its factorization.

31422000344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24395999 (or 24395995 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 31422000344 its reverse (44300022413), we get a palindrome (75722022757).

The spelling of 31422000344 in words is "thirty-one billion, four hundred twenty-two million, three hundred forty-four", and thus it is an aban number.