25378940 has 12 divisors (see below), whose sum is σ = 53295816. Its totient is φ = 10151568.

The previous prime is 25378939. The next prime is 25378957. The reversal of 25378940 is 4987352.

It is a junction number, because it is equal to n+sod(n) for n = 25378894 and 25378903.

It is a congruent number.

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, 634454 + ... + 634493.

It is an arithmetic number, because the mean of its divisors is an integer number (4441318).

Almost surely, 2^25378940 is an apocalyptic number.

25378940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25378940 is an abundant number, since it is smaller than the sum of its proper divisors (27916876).

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

25378940 is a wasteful number, since it uses less digits than its factorization.

25378940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268956 (or 1268954 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 25378940 is about 5037.7514825565. The cubic root of 25378940 is about 293.8717412997.

The spelling of 25378940 in words is "twenty-five million, three hundred seventy-eight thousand, nine hundred forty".