25340438 has 8 divisors (see below), whose sum is σ = 40246632. Its totient is φ = 11924896.

The previous prime is 25340407. The next prime is 25340443. The reversal of 25340438 is 83404352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25340438.

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, 372620 + ... + 372687.

It is an arithmetic number, because the mean of its divisors is an integer number (5030829).

Almost surely, 2^25340438 is an apocalyptic number.

25340438 is a deficient number, since it is larger than the sum of its proper divisors (14906194).

25340438 is a wasteful number, since it uses less digits than its factorization.

25340438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745326.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 25340438 is about 5033.9286844372. The cubic root of 25340438 is about 293.7230566506.

The spelling of 25340438 in words is "twenty-five million, three hundred forty thousand, four hundred thirty-eight".