229209409140 has 48 divisors (see below), whose sum is σ = 679538486592. Its totient is φ = 57527067136.

The previous prime is 229209409139. The next prime is 229209409151. The reversal of 229209409140 is 41904902922.

It is a junction number, because it is equal to n+sod(n) for n = 229209409092 and 229209409101.

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, 112356534 + ... + 112358573.

It is an arithmetic number, because the mean of its divisors is an integer number (14157051804).

Almost surely, 2^229209409140 is an apocalyptic number.

229209409140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229209409140 is an abundant number, since it is smaller than the sum of its proper divisors (450329077452).

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

229209409140 is a wasteful number, since it uses less digits than its factorization.

229209409140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224715136 (or 224715134 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 229209409140 in words is "two hundred twenty-nine billion, two hundred nine million, four hundred nine thousand, one hundred forty".