7490440 has 32 divisors (see below), whose sum is σ = 16940160. Its totient is φ = 2980800.

The previous prime is 7490423. The next prime is 7490443. The reversal of 7490440 is 440947.

It is a super-2 number, since 2×7490440² = 112213382787200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7490399 and 7490408.

It is not an unprimeable number, because it can be changed into a prime (7490443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10495 + ... + 11185.

It is an arithmetic number, because the mean of its divisors is an integer number (529380).

Almost surely, 2^7490440 is an apocalyptic number.

It is an amenable number.

7490440 is an abundant number, since it is smaller than the sum of its proper divisors (9449720).

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

7490440 is a wasteful number, since it uses less digits than its factorization.

7490440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7490440 is about 2736.8668217507. The cubic root of 7490440 is about 195.6601775076.

The spelling of 7490440 in words is "seven million, four hundred ninety thousand, four hundred forty".