25700940 has 144 divisors (see below), whose sum is σ = 85149792. Its totient is φ = 6248448.

The previous prime is 25700933. The next prime is 25700981. The reversal of 25700940 is 4900752.

25700940 is a `hidden beast` number, since 2 + 570 + 0 + 94 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113107 + ... + 113333.

It is an arithmetic number, because the mean of its divisors is an integer number (591318).

Almost surely, 2^25700940 is an apocalyptic number.

25700940 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 25700940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42574896).

25700940 is an abundant number, since it is smaller than the sum of its proper divisors (59448852).

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

25700940 is a wasteful number, since it uses less digits than its factorization.

25700940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 25700940 is about 5069.6094524135. The cubic root of 25700940 is about 295.1093724486.

It can be divided in two parts, 257009 and 40, that added together give a square (257049 = 507²).

The spelling of 25700940 in words is "twenty-five million, seven hundred thousand, nine hundred forty".