7275490 has 16 divisors (see below), whose sum is σ = 13866552. Its totient is φ = 2738944.

The previous prime is 7275487. The next prime is 7275497. The reversal of 7275490 is 945727.

It can be written as a sum of positive squares in 4 ways, for example, as 7273809 + 1681 = 2697^2 + 41^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (7275497) 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, 21229 + ... + 21568.

Almost surely, 2^7275490 is an apocalyptic number.

7275490 is a deficient number, since it is larger than the sum of its proper divisors (6591062).

7275490 is a wasteful number, since it uses less digits than its factorization.

7275490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42821.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 7275490 is about 2697.3116245625. The cubic root of 7275490 is about 193.7703911941.

The spelling of 7275490 in words is "seven million, two hundred seventy-five thousand, four hundred ninety".