7230428 has 6 divisors (see below), whose sum is σ = 12653256. Its totient is φ = 3615212.

The previous prime is 7230331. The next prime is 7230479. The reversal of 7230428 is 8240327.

It is a junction number, because it is equal to n+sod(n) for n = 7230397 and 7230406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903800 + ... + 903807.

It is an arithmetic number, because the mean of its divisors is an integer number (2108876).

Almost surely, 2^7230428 is an apocalyptic number.

It is an amenable number.

7230428 is a deficient number, since it is larger than the sum of its proper divisors (5422828).

7230428 is a wasteful number, since it uses less digits than its factorization.

7230428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807611 (or 1807609 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 7230428 is about 2688.9455182283. The cubic root of 7230428 is about 193.3695123203.

The spelling of 7230428 in words is "seven million, two hundred thirty thousand, four hundred twenty-eight".