228434790 has 16 divisors (see below), whose sum is σ = 548243568. Its totient is φ = 60915936.

The previous prime is 228434783. The next prime is 228434807. The reversal of 228434790 is 97434822.

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, 3807217 + ... + 3807276.

It is an arithmetic number, because the mean of its divisors is an integer number (34265223).

Almost surely, 2^228434790 is an apocalyptic number.

228434790 is an abundant number, since it is smaller than the sum of its proper divisors (319808778).

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

228434790 is a wasteful number, since it uses less digits than its factorization.

228434790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614503.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 228434790 is about 15114.0593488315. The cubic root of 228434790 is about 611.2995585464.

The spelling of 228434790 in words is "two hundred twenty-eight million, four hundred thirty-four thousand, seven hundred ninety".