25346840 has 32 divisors (see below), whose sum is σ = 58872960. Its totient is φ = 9811200.

The previous prime is 25346833. The next prime is 25346857. The reversal of 25346840 is 4864352.

It is a junction number, because it is equal to n+sod(n) for n = 25346797 and 25346806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981 + ... + 11460.

It is an arithmetic number, because the mean of its divisors is an integer number (1839780).

Almost surely, 2^25346840 is an apocalyptic number.

25346840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25346840 is an abundant number, since it is smaller than the sum of its proper divisors (33526120).

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

25346840 is a wasteful number, since it uses less digits than its factorization.

25346840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20483 (or 20479 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 25346840 is about 5034.5645293312. The cubic root of 25346840 is about 293.7477899336.

The spelling of 25346840 in words is "twenty-five million, three hundred forty-six thousand, eight hundred forty".