25034240 has 160 divisors (see below), whose sum is σ = 75423744. Its totient is φ = 7741440.

The previous prime is 25034227. The next prime is 25034249. The reversal of 25034240 is 4243052.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25034249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197057 + ... + 197183.

Almost surely, 2^25034240 is an apocalyptic number.

25034240 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 25034240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37711872).

25034240 is an abundant number, since it is smaller than the sum of its proper divisors (50389504).

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

25034240 is a wasteful number, since it uses less digits than its factorization.

25034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25034240 is about 5003.4228284246. The cubic root of 25034240 is about 292.5352040809.

Adding to 25034240 its reverse (4243052), we get a palindrome (29277292).

The spelling of 25034240 in words is "twenty-five million, thirty-four thousand, two hundred forty".