31498434 has 48 divisors (see below), whose sum is σ = 74861280. Its totient is φ = 9492480.

The previous prime is 31498427. The next prime is 31498463. The reversal of 31498434 is 43489413.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50577 + ... + 51195.

It is an arithmetic number, because the mean of its divisors is an integer number (1559610).

Almost surely, 2^31498434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31498434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37430640).

31498434 is an abundant number, since it is smaller than the sum of its proper divisors (43362846).

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

31498434 is a wasteful number, since it uses less digits than its factorization.

31498434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 31498434 is about 5612.3465680587. The cubic root of 31498434 is about 315.8127462410.

The spelling of 31498434 in words is "thirty-one million, four hundred ninety-eight thousand, four hundred thirty-four".