31066406 has 16 divisors (see below), whose sum is σ = 56060160. Its totient is φ = 12613320.

The previous prime is 31066393. The next prime is 31066411. The reversal of 31066406 is 60466013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58130 + ... + 58661.

It is an arithmetic number, because the mean of its divisors is an integer number (3503760).

Almost surely, 2^31066406 is an apocalyptic number.

31066406 is a deficient number, since it is larger than the sum of its proper divisors (24993754).

31066406 is a wasteful number, since it uses less digits than its factorization.

31066406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116819.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 31066406 is about 5573.7246074775. The cubic root of 31066406 is about 314.3622133537.

The spelling of 31066406 in words is "thirty-one million, sixty-six thousand, four hundred six".