25428084 has 24 divisors (see below), whose sum is σ = 64726368. Its totient is φ = 7705440.

The previous prime is 25428083. The next prime is 25428097. The reversal of 25428084 is 48082452.

It is a happy number.

It is a super-2 number, since 2×25428084² = 1293174911822112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25428083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96187 + ... + 96450.

It is an arithmetic number, because the mean of its divisors is an integer number (2696932).

Almost surely, 2^25428084 is an apocalyptic number.

It is an amenable number.

25428084 is an abundant number, since it is smaller than the sum of its proper divisors (39298284).

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

25428084 is a wasteful number, since it uses less digits than its factorization.

25428084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192655 (or 192653 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 25428084 is about 5042.6266964748. The cubic root of 25428084 is about 294.0613042599.

The spelling of 25428084 in words is "twenty-five million, four hundred twenty-eight thousand, eighty-four".