234163440 has 320 divisors, whose sum is σ = 977080320. Its totient is φ = 50319360.

The previous prime is 234163421. The next prime is 234163441. The reversal of 234163440 is 44361432.

234163440 is a `hidden beast` number, since 23 + 4 + 1 + 634 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234163441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 256585 + ... + 257495.

It is an arithmetic number, because the mean of its divisors is an integer number (3053376).

Almost surely, 2^234163440 is an apocalyptic number.

234163440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234163440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488540160).

234163440 is an abundant number, since it is smaller than the sum of its proper divisors (742916880).

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

234163440 is a wasteful number, since it uses less digits than its factorization.

234163440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 234163440 is about 15302.3998117942. The cubic root of 234163440 is about 616.3674509763.

The spelling of 234163440 in words is "two hundred thirty-four million, one hundred sixty-three thousand, four hundred forty".