25734720 has 112 divisors (see below), whose sum is σ = 89172288. Its totient is φ = 6236160.

The previous prime is 25734707. The next prime is 25734739. The reversal of 25734720 is 2743752.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 9342 + ... + 11778.

Almost surely, 2^25734720 is an apocalyptic number.

25734720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44586144).

25734720 is an abundant number, since it is smaller than the sum of its proper divisors (63437568).

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

25734720 is a wasteful number, since it uses less digits than its factorization.

25734720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 25734720 is about 5072.9399759903. The cubic root of 25734720 is about 295.2386080628.

The spelling of 25734720 in words is "twenty-five million, seven hundred thirty-four thousand, seven hundred twenty".