7420290 has 16 divisors (see below), whose sum is σ = 17808768. Its totient is φ = 1978736.

The previous prime is 7420289. The next prime is 7420307. The reversal of 7420290 is 920247.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7420290.

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, 123642 + ... + 123701.

It is an arithmetic number, because the mean of its divisors is an integer number (1113048).

Almost surely, 2^7420290 is an apocalyptic number.

7420290 is an abundant number, since it is smaller than the sum of its proper divisors (10388478).

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

7420290 is a wasteful number, since it uses less digits than its factorization.

7420290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247353.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 7420290 is about 2724.0209250298. The cubic root of 7420290 is about 195.0474572199.

The spelling of 7420290 in words is "seven million, four hundred twenty thousand, two hundred ninety".