7238440 has 32 divisors (see below), whose sum is σ = 17768160. Its totient is φ = 2632000.

The previous prime is 7238419. The next prime is 7238467. The reversal of 7238440 is 448327.

It is a junction number, because it is equal to n+sod(n) for n = 7238399 and 7238408.

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, 7786 + ... + 8665.

It is an arithmetic number, because the mean of its divisors is an integer number (555255).

Almost surely, 2^7238440 is an apocalyptic number.

It is an amenable number.

7238440 is an abundant number, since it is smaller than the sum of its proper divisors (10529720).

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

7238440 is a wasteful number, since it uses less digits than its factorization.

7238440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16473 (or 16469 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 7238440 is about 2690.4349090807. The cubic root of 7238440 is about 193.4409098751.

The spelling of 7238440 in words is "seven million, two hundred thirty-eight thousand, four hundred forty".