7426240 has 56 divisors (see below), whose sum is σ = 18470880. Its totient is φ = 2838528.

The previous prime is 7426231. The next prime is 7426253. The reversal of 7426240 is 426247.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6856 + ... + 7864.

Almost surely, 2^7426240 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 7426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9235440).

7426240 is an abundant number, since it is smaller than the sum of its proper divisors (11044640).

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

7426240 is a wasteful number, since it uses less digits than its factorization.

7426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7426240 is about 2725.1128417003. The cubic root of 7426240 is about 195.0995765807.

The spelling of 7426240 in words is "seven million, four hundred twenty-six thousand, two hundred forty".