31043196 has 24 divisors (see below), whose sum is σ = 80482640. Its totient is φ = 10347696.

The previous prime is 31043189. The next prime is 31043197. The reversal of 31043196 is 69134013.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31043197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143611 + ... + 143826.

Almost surely, 2^31043196 is an apocalyptic number.

31043196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31043196 is an abundant number, since it is smaller than the sum of its proper divisors (49439444).

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

31043196 is a wasteful number, since it uses less digits than its factorization.

31043196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287450 (or 287442 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 31043196 is about 5571.6421277753. The cubic root of 31043196 is about 314.2839062076.

The spelling of 31043196 in words is "thirty-one million, forty-three thousand, one hundred ninety-six".