25990344 has 24 divisors (see below), whose sum is σ = 70390710. Its totient is φ = 8663424.

The previous prime is 25990337. The next prime is 25990387. The reversal of 25990344 is 44309952.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 1368900 = 4962^2 + 1170^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 25990299 and 25990308.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180417 + ... + 180560.

Almost surely, 2^25990344 is an apocalyptic number.

25990344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25990344 is an abundant number, since it is smaller than the sum of its proper divisors (44400366).

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

25990344 is a wasteful number, since it uses less digits than its factorization.

25990344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360989 (or 360982 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 25990344 is about 5098.0725769647. The cubic root of 25990344 is about 296.2129281176.

The spelling of 25990344 in words is "twenty-five million, nine hundred ninety thousand, three hundred forty-four".