25710340 has 12 divisors (see below), whose sum is σ = 53991756. Its totient is φ = 10284128.

The previous prime is 25710331. The next prime is 25710359. The reversal of 25710340 is 4301752.

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 9437184 = 4034^2 + 3072^2 .

It is a super-2 number, since 2×25710340² = 1322043165831200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642739 + ... + 642778.

It is an arithmetic number, because the mean of its divisors is an integer number (4499313).

Almost surely, 2^25710340 is an apocalyptic number.

25710340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25710340 is an abundant number, since it is smaller than the sum of its proper divisors (28281416).

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

25710340 is a wasteful number, since it uses less digits than its factorization.

25710340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285526 (or 1285524 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25710340 is about 5070.5364607702. The cubic root of 25710340 is about 295.1453463595.

The spelling of 25710340 in words is "twenty-five million, seven hundred ten thousand, three hundred forty".