7205490 has 32 divisors (see below), whose sum is σ = 19215360. Its totient is φ = 1921392.

The previous prime is 7205483. The next prime is 7205507. The reversal of 7205490 is 945027.

It is a super-2 number, since 2×7205490² = 103838172280200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13074 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (600480).

Almost surely, 2^7205490 is an apocalyptic number.

7205490 is an abundant number, since it is smaller than the sum of its proper divisors (12009870).

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

7205490 is a wasteful number, since it uses less digits than its factorization.

7205490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26703 (or 26697 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 7205490 is about 2684.3043791642. The cubic root of 7205490 is about 193.1469434959.

The spelling of 7205490 in words is "seven million, two hundred five thousand, four hundred ninety".