7428180 has 24 divisors (see below), whose sum is σ = 20799072. Its totient is φ = 1980832.

The previous prime is 7428173. The next prime is 7428191. The reversal of 7428180 is 818247.

It is a super-2 number, since 2×7428180² = 110355716224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

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, 61842 + ... + 61961.

It is an arithmetic number, because the mean of its divisors is an integer number (866628).

Almost surely, 2^7428180 is an apocalyptic number.

It is an amenable number.

7428180 is an abundant number, since it is smaller than the sum of its proper divisors (13370892).

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

7428180 is a wasteful number, since it uses less digits than its factorization.

7428180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123815 (or 123813 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 7428180 is about 2725.4687670197. The cubic root of 7428180 is about 195.1165641018.

The spelling of 7428180 in words is "seven million, four hundred twenty-eight thousand, one hundred eighty".