229400400828 has 12 divisors (see below), whose sum is σ = 535267601960. Its totient is φ = 76466800272.

The previous prime is 229400400701. The next prime is 229400400839. The reversal of 229400400828 is 828004004922.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9558350023 + ... + 9558350046.

Almost surely, 2^229400400828 is an apocalyptic number.

It is an amenable number.

229400400828 is an abundant number, since it is smaller than the sum of its proper divisors (305867201132).

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

229400400828 is a wasteful number, since it uses less digits than its factorization.

229400400828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19116700076 (or 19116700074 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 229400400828 in words is "two hundred twenty-nine billion, four hundred million, four hundred thousand, eight hundred twenty-eight".