234128460 has 24 divisors (see below), whose sum is σ = 655559856. Its totient is φ = 62434240.

The previous prime is 234128459. The next prime is 234128509. The reversal of 234128460 is 64821432.

It is a super-2 number, since 2×234128460² = 109632271563943200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

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, 1951011 + ... + 1951130.

It is an arithmetic number, because the mean of its divisors is an integer number (27314994).

Almost surely, 2^234128460 is an apocalyptic number.

234128460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234128460 is an abundant number, since it is smaller than the sum of its proper divisors (421431396).

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

234128460 is a wasteful number, since it uses less digits than its factorization.

234128460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902153 (or 3902151 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 234128460 is about 15301.2568111250. The cubic root of 234128460 is about 616.3367578742.

Adding to 234128460 its reverse (64821432), we get a palindrome (298949892).

The spelling of 234128460 in words is "two hundred thirty-four million, one hundred twenty-eight thousand, four hundred sixty".