31838425442 has 32 divisors (see below), whose sum is σ = 50869776384. Its totient is φ = 14920070400.

The previous prime is 31838425433. The next prime is 31838425447. The reversal of 31838425442 is 24452483813.

It is a junction number, because it is equal to n+sod(n) for n = 31838425393 and 31838425402.

It is not an unprimeable number, because it can be changed into a prime (31838425447) 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, 302543 + ... + 393965.

It is an arithmetic number, because the mean of its divisors is an integer number (1589680512).

Almost surely, 2^31838425442 is an apocalyptic number.

31838425442 is a deficient number, since it is larger than the sum of its proper divisors (19031350942).

31838425442 is a wasteful number, since it uses less digits than its factorization.

31838425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91634.

The product of its digits is 737280, while the sum is 44.

The spelling of 31838425442 in words is "thirty-one billion, eight hundred thirty-eight million, four hundred twenty-five thousand, four hundred forty-two".