229866651 has 24 divisors (see below), whose sum is σ = 380150784. Its totient is φ = 131114160.

The previous prime is 229866647. The next prime is 229866653. The reversal of 229866651 is 156668922.

It is not a de Polignac number, because 229866651 - 2² = 229866647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229866597 and 229866606.

It is not an unprimeable number, because it can be changed into a prime (229866653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35236 + ... + 41246.

It is an arithmetic number, because the mean of its divisors is an integer number (15839616).

Almost surely, 2^229866651 is an apocalyptic number.

229866651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

229866651 is a deficient number, since it is larger than the sum of its proper divisors (150284133).

229866651 is a wasteful number, since it uses less digits than its factorization.

229866651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631 (or 6628 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 229866651 is about 15161.3538643487. The cubic root of 229866651 is about 612.5741360215.

The spelling of 229866651 in words is "two hundred twenty-nine million, eight hundred sixty-six thousand, six hundred fifty-one".