25919340 has 48 divisors (see below), whose sum is σ = 72817920. Its totient is φ = 6888640.

The previous prime is 25919293. The next prime is 25919371. The reversal of 25919340 is 4391952.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24625 + ... + 25655.

It is an arithmetic number, because the mean of its divisors is an integer number (1517040).

Almost surely, 2^25919340 is an apocalyptic number.

25919340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25919340 is an abundant number, since it is smaller than the sum of its proper divisors (46898580).

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

25919340 is a wasteful number, since it uses less digits than its factorization.

25919340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 25919340 is about 5091.1040060089. The cubic root of 25919340 is about 295.9429370157.

The spelling of 25919340 in words is "twenty-five million, nine hundred nineteen thousand, three hundred forty".