25787340 has 36 divisors (see below), whose sum is σ = 78222144. Its totient is φ = 6876576.

The previous prime is 25787339. The next prime is 25787357. The reversal of 25787340 is 4378752.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 25787295 and 25787304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71452 + ... + 71811.

Almost surely, 2^25787340 is an apocalyptic number.

25787340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25787340 is an abundant number, since it is smaller than the sum of its proper divisors (52434804).

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

25787340 is a wasteful number, since it uses less digits than its factorization.

25787340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143278 (or 143273 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 25787340 is about 5078.1236692306. The cubic root of 25787340 is about 295.4396966968.

The spelling of 25787340 in words is "twenty-five million, seven hundred eighty-seven thousand, three hundred forty".