25199340 has 48 divisors (see below), whose sum is σ = 71135232. Its totient is φ = 6664896.

The previous prime is 25199309. The next prime is 25199351. The reversal of 25199340 is 4399152.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5967 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (1481984).

Almost surely, 2^25199340 is an apocalyptic number.

25199340 is a gapful number since it is divisible by the number (20) 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 25199340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35567616).

25199340 is an abundant number, since it is smaller than the sum of its proper divisors (45935892).

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

25199340 is a wasteful number, since it uses less digits than its factorization.

25199340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 3444 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 25199340 is about 5019.8944212005. The cubic root of 25199340 is about 293.1768822502.

The spelling of 25199340 in words is "twenty-five million, one hundred ninety-nine thousand, three hundred forty".