229369428 has 24 divisors (see below), whose sum is σ = 594661760. Its totient is φ = 76456440.

The previous prime is 229369397. The next prime is 229369433. The reversal of 229369428 is 824963922.

229369428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×229369428² = 105220669002094368, which contains 22 as substring.

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, 1061788 + ... + 1062003.

Almost surely, 2^229369428 is an apocalyptic number.

It is an amenable number.

229369428 is an abundant number, since it is smaller than the sum of its proper divisors (365292332).

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

229369428 is a wasteful number, since it uses less digits than its factorization.

229369428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123804 (or 2123796 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 229369428 is about 15144.9472762370. The cubic root of 229369428 is about 612.1321321777.

The spelling of 229369428 in words is "two hundred twenty-nine million, three hundred sixty-nine thousand, four hundred twenty-eight".