31494348 has 72 divisors (see below), whose sum is σ = 83472480. Its totient is φ = 9999360.

The previous prime is 31494347. The next prime is 31494389. The reversal of 31494348 is 84349413.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (31494347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101113 + ... + 101423.

It is an arithmetic number, because the mean of its divisors is an integer number (1159340).

Almost surely, 2^31494348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31494348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41736240).

31494348 is an abundant number, since it is smaller than the sum of its proper divisors (51978132).

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

31494348 is a wasteful number, since it uses less digits than its factorization.

31494348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 442 counting only the distinct ones).

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

The square root of 31494348 is about 5611.9825373926. The cubic root of 31494348 is about 315.7990898300.

The spelling of 31494348 in words is "thirty-one million, four hundred ninety-four thousand, three hundred forty-eight".