229778330628 has 72 divisors (see below), whose sum is σ = 673510067776. Its totient is φ = 59682680640.

The previous prime is 229778330609. The next prime is 229778330629. The reversal of 229778330628 is 826033877922.

It is not an unprimeable number, because it can be changed into a prime (229778330629) 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, 11293375 + ... + 11313702.

Almost surely, 2^229778330628 is an apocalyptic number.

229778330628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

229778330628 is an abundant number, since it is smaller than the sum of its proper divisors (443731737148).

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

229778330628 is a wasteful number, since it uses less digits than its factorization.

229778330628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22607113 (or 22607100 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 229778330628 in words is "two hundred twenty-nine billion, seven hundred seventy-eight million, three hundred thirty thousand, six hundred twenty-eight".