31414420 has 24 divisors (see below), whose sum is σ = 66654504. Its totient is φ = 12435456.

The previous prime is 31414387. The next prime is 31414463. The reversal of 31414420 is 2441413.

It can be written as a sum of positive squares in 4 ways, for example, as 10784656 + 20629764 = 3284^2 + 4542^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6157 + ... + 10036.

It is an arithmetic number, because the mean of its divisors is an integer number (2777271).

Almost surely, 2^31414420 is an apocalyptic number.

It is an amenable number.

31414420 is an abundant number, since it is smaller than the sum of its proper divisors (35240084).

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

31414420 is a wasteful number, since it uses less digits than its factorization.

31414420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16299 (or 16297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 31414420 is about 5604.8568224353. The cubic root of 31414420 is about 315.5317130442.

Adding to 31414420 its reverse (2441413), we get a palindrome (33855833).

The spelling of 31414420 in words is "thirty-one million, four hundred fourteen thousand, four hundred twenty".