229973400 has 72 divisors (see below), whose sum is σ = 772333380. Its totient is φ = 61325760.

The previous prime is 229973371. The next prime is 229973423. The reversal of 229973400 is 4379922.

229973400 is a `hidden beast` number, since 229 + 97 + 340 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62082 + ... + 65681.

Almost surely, 2^229973400 is an apocalyptic number.

229973400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229973400 is an abundant number, since it is smaller than the sum of its proper divisors (542359980).

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

229973400 is a wasteful number, since it uses less digits than its factorization.

229973400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127785 (or 127773 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 229973400 is about 15164.8738867160. The cubic root of 229973400 is about 612.6689468698.

The spelling of 229973400 in words is "two hundred twenty-nine million, nine hundred seventy-three thousand, four hundred".