234430240 has 72 divisors (see below), whose sum is σ = 608818140. Its totient is φ = 85240320.

The previous prime is 234430213. The next prime is 234430247. The reversal of 234430240 is 42034432.

It can be written as a sum of positive squares in 2 ways, for example, as 214681104 + 19749136 = 14652^2 + 4444^2 .

It is a hoax number, since the sum of its digits (22) 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 (22).

It is not an unprimeable number, because it can be changed into a prime (234430247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13306 + ... + 25414.

Almost surely, 2^234430240 is an apocalyptic number.

234430240 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 234430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304409070).

234430240 is an abundant number, since it is smaller than the sum of its proper divisors (374387900).

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

234430240 is a wasteful number, since it uses less digits than its factorization.

234430240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146 (or 12127 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 234430240 is about 15311.1149169484. The cubic root of 234430240 is about 616.6014533749.

Adding to 234430240 its reverse (42034432), we get a palindrome (276464672).

The spelling of 234430240 in words is "two hundred thirty-four million, four hundred thirty thousand, two hundred forty".