7425240 has 64 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 1932672.

The previous prime is 7425239. The next prime is 7425259. The reversal of 7425240 is 425247.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7425240.

It is a congruent number.

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, 4441 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^7425240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7425240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11404800).

7425240 is an abundant number, since it is smaller than the sum of its proper divisors (15384360).

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

7425240 is a wasteful number, since it uses less digits than its factorization.

7425240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1492 counting only the distinct ones).

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

The square root of 7425240 is about 2724.9293568825. The cubic root of 7425240 is about 195.0908189710.

The spelling of 7425240 in words is "seven million, four hundred twenty-five thousand, two hundred forty".