228989070 has 48 divisors (see below), whose sum is σ = 596598912. Its totient is φ = 60937920.

The previous prime is 228989069. The next prime is 228989077. The reversal of 228989070 is 70989822.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228989077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46339 + ... + 51041.

It is an arithmetic number, because the mean of its divisors is an integer number (12429144).

Almost surely, 2^228989070 is an apocalyptic number.

228989070 is an abundant number, since it is smaller than the sum of its proper divisors (367609842).

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

228989070 is a wasteful number, since it uses less digits than its factorization.

228989070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257 (or 5254 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 228989070 is about 15132.3848087471. The cubic root of 228989070 is about 611.7935834694.

The spelling of 228989070 in words is "two hundred twenty-eight million, nine hundred eighty-nine thousand, seventy".