229902376820 has 48 divisors (see below), whose sum is σ = 483746860800. Its totient is φ = 91779813120.

The previous prime is 229902376819. The next prime is 229902376831. The reversal of 229902376820 is 28673209922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28594361 + ... + 28602399.

It is an arithmetic number, because the mean of its divisors is an integer number (10078059600).

Almost surely, 2^229902376820 is an apocalyptic number.

229902376820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229902376820 is an abundant number, since it is smaller than the sum of its proper divisors (253844483980).

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

229902376820 is a wasteful number, since it uses less digits than its factorization.

229902376820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10688 (or 10686 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 229902376820 in words is "two hundred twenty-nine billion, nine hundred two million, three hundred seventy-six thousand, eight hundred twenty".