31349450 has 24 divisors (see below), whose sum is σ = 63612000. Its totient is φ = 11399600.

The previous prime is 31349443. The next prime is 31349453. The reversal of 31349450 is 5494313.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31349453) 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, 27950 + ... + 29049.

It is an arithmetic number, because the mean of its divisors is an integer number (2650500).

Almost surely, 2^31349450 is an apocalyptic number.

31349450 is an abundant number, since it is smaller than the sum of its proper divisors (32262550).

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

31349450 is a wasteful number, since it uses less digits than its factorization.

31349450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57022 (or 57017 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 31349450 is about 5599.0579564780. The cubic root of 31349450 is about 315.3140397153.

The spelling of 31349450 in words is "thirty-one million, three hundred forty-nine thousand, four hundred fifty".