228515430 has 64 divisors (see below), whose sum is σ = 644329728. Its totient is φ = 51135360.

The previous prime is 228515423. The next prime is 228515453. The reversal of 228515430 is 34515822.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22344 + ... + 30923.

It is an arithmetic number, because the mean of its divisors is an integer number (10067652).

Almost surely, 2^228515430 is an apocalyptic number.

228515430 is an abundant number, since it is smaller than the sum of its proper divisors (415814298).

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

228515430 is a wasteful number, since it uses less digits than its factorization.

228515430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53301.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 228515430 is about 15116.7268282522. The cubic root of 228515430 is about 611.3714819123.

The spelling of 228515430 in words is "two hundred twenty-eight million, five hundred fifteen thousand, four hundred thirty".