25740394 has 8 divisors (see below), whose sum is σ = 38633220. Its totient is φ = 12862656.

The previous prime is 25740391. The next prime is 25740401. The reversal of 25740394 is 49304752.

It can be written as a sum of positive squares in 2 ways, for example, as 25452025 + 288369 = 5045^2 + 537^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25740391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752 + ... + 7684.

Almost surely, 2^25740394 is an apocalyptic number.

25740394 is a deficient number, since it is larger than the sum of its proper divisors (12892826).

25740394 is a wasteful number, since it uses less digits than its factorization.

25740394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 25740394 is about 5073.4991869517. The cubic root of 25740394 is about 295.2603045719.

The spelling of 25740394 in words is "twenty-five million, seven hundred forty thousand, three hundred ninety-four".