229408940 has 24 divisors (see below), whose sum is σ = 493510752. Its totient is φ = 89525120.

The previous prime is 229408901. The next prime is 229408967. The reversal of 229408940 is 49804922.

It is a junction number, because it is equal to n+sod(n) for n = 229408894 and 229408903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139064 + ... + 140703.

It is an arithmetic number, because the mean of its divisors is an integer number (20562948).

Almost surely, 2^229408940 is an apocalyptic number.

229408940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229408940 is an abundant number, since it is smaller than the sum of its proper divisors (264101812).

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

229408940 is a wasteful number, since it uses less digits than its factorization.

229408940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279817 (or 279815 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 229408940 is about 15146.2516815217. The cubic root of 229408940 is about 612.1672795182.

The spelling of 229408940 in words is "two hundred twenty-nine million, four hundred eight thousand, nine hundred forty".