31442400354 has 32 divisors (see below), whose sum is σ = 66702294720. Its totient is φ = 9846743552.

The previous prime is 31442400323. The next prime is 31442400391. The reversal of 31442400354 is 45300424413.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216339 + ... + 331190.

It is an arithmetic number, because the mean of its divisors is an integer number (2084446710).

Almost surely, 2^31442400354 is an apocalyptic number.

31442400354 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31442400354 is an abundant number, since it is smaller than the sum of its proper divisors (35259894366).

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

31442400354 is a wasteful number, since it uses less digits than its factorization.

31442400354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548114.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 31442400354 its reverse (45300424413), we get a palindrome (76742824767).

The spelling of 31442400354 in words is "thirty-one billion, four hundred forty-two million, four hundred thousand, three hundred fifty-four".