13925240 has 64 divisors (see below), whose sum is σ = 36711360. Its totient is φ = 4654080.

The previous prime is 13925129. The next prime is 13925243. The reversal of 13925240 is 4252931.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13925243) 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, 10874 + ... + 12086.

It is an arithmetic number, because the mean of its divisors is an integer number (573615).

Almost surely, 2^13925240 is an apocalyptic number.

13925240 is a gapful number since it is divisible by the number (10) 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 13925240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18355680).

13925240 is an abundant number, since it is smaller than the sum of its proper divisors (22786120).

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

13925240 is a wasteful number, since it uses less digits than its factorization.

13925240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13925240 is about 3731.6537888716. The cubic root of 13925240 is about 240.5844551915.

The spelling of 13925240 in words is "thirteen million, nine hundred twenty-five thousand, two hundred forty".