229953840 has 40 divisors (see below), whose sum is σ = 712857648. Its totient is φ = 61320960.

The previous prime is 229953833. The next prime is 229953859. The reversal of 229953840 is 48359922.

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

It is a junction number, because it is equal to n+sod(n) for n = 229953792 and 229953801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478831 + ... + 479310.

Almost surely, 2^229953840 is an apocalyptic number.

229953840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229953840 is an abundant number, since it is smaller than the sum of its proper divisors (482903808).

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

229953840 is a wasteful number, since it uses less digits than its factorization.

229953840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958157 (or 958151 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 229953840 is about 15164.2289616057. The cubic root of 229953840 is about 612.6515765357.

The spelling of 229953840 in words is "two hundred twenty-nine million, nine hundred fifty-three thousand, eight hundred forty".