31484918 has 8 divisors (see below), whose sum is σ = 50005512. Its totient is φ = 14816416.

The previous prime is 31484911. The next prime is 31484941. The reversal of 31484918 is 81948413.

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

It is a super-2 number, since 2×31484918² = 1982600122933448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31484911) 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, 462980 + ... + 463047.

It is an arithmetic number, because the mean of its divisors is an integer number (6250689).

Almost surely, 2^31484918 is an apocalyptic number.

31484918 is a deficient number, since it is larger than the sum of its proper divisors (18520594).

31484918 is a wasteful number, since it uses less digits than its factorization.

31484918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926046.

The product of its digits is 27648, while the sum is 38.

The square root of 31484918 is about 5611.1423079441. The cubic root of 31484918 is about 315.7675679551.

The spelling of 31484918 in words is "thirty-one million, four hundred eighty-four thousand, nine hundred eighteen".