25420704 has 96 divisors (see below), whose sum is σ = 72213120. Its totient is φ = 7805952.

The previous prime is 25420691. The next prime is 25420721. The reversal of 25420704 is 40702452.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63834 + ... + 64230.

It is an arithmetic number, because the mean of its divisors is an integer number (752220).

Almost surely, 2^25420704 is an apocalyptic number.

25420704 is a gapful number since it is divisible by the number (24) 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 25420704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36106560).

25420704 is an abundant number, since it is smaller than the sum of its proper divisors (46792416).

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

25420704 is a wasteful number, since it uses less digits than its factorization.

25420704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 25420704 is about 5041.8948818872. The cubic root of 25420704 is about 294.0328530088.

The spelling of 25420704 in words is "twenty-five million, four hundred twenty thousand, seven hundred four".