229113840 has 40 divisors (see below), whose sum is σ = 710253648. Its totient is φ = 61096960.

The previous prime is 229113823. The next prime is 229113851. The reversal of 229113840 is 48311922.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 229113798 and 229113807.

It is a congruent number.

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, 477081 + ... + 477560.

Almost surely, 2^229113840 is an apocalyptic number.

229113840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229113840 is an abundant number, since it is smaller than the sum of its proper divisors (481139808).

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

229113840 is a wasteful number, since it uses less digits than its factorization.

229113840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954657 (or 954651 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 229113840 is about 15136.5068625492. The cubic root of 229113840 is about 611.9046799300.

The spelling of 229113840 in words is "two hundred twenty-nine million, one hundred thirteen thousand, eight hundred forty".