31406214 has 32 divisors (see below), whose sum is σ = 72011520. Its totient is φ = 8944992.

The previous prime is 31406197. The next prime is 31406233. The reversal of 31406214 is 41260413.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14932 + ... + 16904.

It is an arithmetic number, because the mean of its divisors is an integer number (2250360).

Almost surely, 2^31406214 is an apocalyptic number.

31406214 is an abundant number, since it is smaller than the sum of its proper divisors (40605306).

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

31406214 is a wasteful number, since it uses less digits than its factorization.

31406214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 31406214 is about 5604.1247309459. The cubic root of 31406214 is about 315.5042365040.

Adding to 31406214 its reverse (41260413), we get a palindrome (72666627).

The spelling of 31406214 in words is "thirty-one million, four hundred six thousand, two hundred fourteen".