25740238 has 8 divisors (see below), whose sum is σ = 39139488. Its totient is φ = 12693744.

The previous prime is 25740203. The next prime is 25740257. The reversal of 25740238 is 83204752.

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

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, 88006 + ... + 88297.

It is an arithmetic number, because the mean of its divisors is an integer number (4892436).

Almost surely, 2^25740238 is an apocalyptic number.

25740238 is a deficient number, since it is larger than the sum of its proper divisors (13399250).

25740238 is a wasteful number, since it uses less digits than its factorization.

25740238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176378.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 25740238 is about 5073.4838129238. The cubic root of 25740238 is about 295.2597080944.

The spelling of 25740238 in words is "twenty-five million, seven hundred forty thousand, two hundred thirty-eight".