31140414 has 24 divisors (see below), whose sum is σ = 68908320. Its totient is φ = 10159008.

The previous prime is 31140409. The next prime is 31140419. The reversal of 31140414 is 41404113.

It is an interprime number because it is at equal distance from previous prime (31140409) and next prime (31140419).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17559 + ... + 19250.

It is an arithmetic number, because the mean of its divisors is an integer number (2871180).

Almost surely, 2^31140414 is an apocalyptic number.

31140414 is an abundant number, since it is smaller than the sum of its proper divisors (37767906).

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

31140414 is a wasteful number, since it uses less digits than its factorization.

31140414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36864 (or 36861 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 31140414 is about 5580.3596658280. The cubic root of 31140414 is about 314.6116453660.

Adding to 31140414 its reverse (41404113), we get a palindrome (72544527).

The spelling of 31140414 in words is "thirty-one million, one hundred forty thousand, four hundred fourteen".