31472842 has 8 divisors (see below), whose sum is σ = 48009600. Its totient is φ = 15469644.

The previous prime is 31472839. The next prime is 31472849. The reversal of 31472842 is 24827413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31472849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133242 + ... + 133477.

It is an arithmetic number, because the mean of its divisors is an integer number (6001200).

Almost surely, 2^31472842 is an apocalyptic number.

31472842 is a deficient number, since it is larger than the sum of its proper divisors (16536758).

31472842 is a wasteful number, since it uses less digits than its factorization.

31472842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266780.

The product of its digits is 10752, while the sum is 31.

The square root of 31472842 is about 5610.0661315175. The cubic root of 31472842 is about 315.7271920438.

The spelling of 31472842 in words is "thirty-one million, four hundred seventy-two thousand, eight hundred forty-two".