229449420 has 36 divisors (see below), whose sum is σ = 695997120. Its totient is φ = 61186464.

The previous prime is 229449413. The next prime is 229449431. The reversal of 229449420 is 24944922.

229449420 is a `hidden beast` number, since 229 + 4 + 4 + 9 + 420 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637180 + ... + 637539.

Almost surely, 2^229449420 is an apocalyptic number.

229449420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229449420 is an abundant number, since it is smaller than the sum of its proper divisors (466547700).

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

229449420 is a wasteful number, since it uses less digits than its factorization.

229449420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274734 (or 1274729 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 229449420 is about 15147.5879267955. The cubic root of 229449420 is about 612.2032837443.

The spelling of 229449420 in words is "two hundred twenty-nine million, four hundred forty-nine thousand, four hundred twenty".