31400412380 has 12 divisors (see below), whose sum is σ = 65940866040. Its totient is φ = 12560164944.

The previous prime is 31400412367. The next prime is 31400412391. The reversal of 31400412380 is 8321400413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785010290 + ... + 785010329.

It is an arithmetic number, because the mean of its divisors is an integer number (5495072170).

Almost surely, 2^31400412380 is an apocalyptic number.

It is an amenable number.

31400412380 is an abundant number, since it is smaller than the sum of its proper divisors (34540453660).

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

31400412380 is a wasteful number, since it uses less digits than its factorization.

31400412380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570020628 (or 1570020626 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31400412380 its reverse (8321400413), we get a palindrome (39721812793).

The spelling of 31400412380 in words is "thirty-one billion, four hundred million, four hundred twelve thousand, three hundred eighty".