229746840 has 64 divisors (see below), whose sum is σ = 729790560. Its totient is φ = 57661440.

The previous prime is 229746817. The next prime is 229746851. The reversal of 229746840 is 48647922.

It is a super-2 number, since 2×229746840² = 105567220979971200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229746792 and 229746801.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 54271 + ... + 58350.

Almost surely, 2^229746840 is an apocalyptic number.

229746840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229746840 is an abundant number, since it is smaller than the sum of its proper divisors (500043720).

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

229746840 is a wasteful number, since it uses less digits than its factorization.

229746840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112652 (or 112648 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 229746840 is about 15157.4021520840. The cubic root of 229746840 is about 612.4676889800.

The spelling of 229746840 in words is "two hundred twenty-nine million, seven hundred forty-six thousand, eight hundred forty".