31459668 has 48 divisors (see below), whose sum is σ = 79779840. Its totient is φ = 9612000.

The previous prime is 31459667. The next prime is 31459679. The reversal of 31459668 is 86695413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31459661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4843 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (1662080).

Almost surely, 2^31459668 is an apocalyptic number.

31459668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31459668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39889920).

31459668 is an abundant number, since it is smaller than the sum of its proper divisors (48320172).

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

31459668 is a wasteful number, since it uses less digits than its factorization.

31459668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508 (or 4506 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 31459668 is about 5608.8918691663. The cubic root of 31459668 is about 315.6831332061.

The spelling of 31459668 in words is "thirty-one million, four hundred fifty-nine thousand, six hundred sixty-eight".