288432234 has 48 divisors (see below), whose sum is σ = 663898248. Its totient is φ = 90187776.

The previous prime is 288432233. The next prime is 288432247. The reversal of 288432234 is 432234882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 272151009 + 16281225 = 16497^2 + 4035^2 .

It is a super-2 number, since 2×288432234² = 166386307220461512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (288432233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101724 + ... + 104520.

Almost surely, 2^288432234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288432234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331949124).

288432234 is an abundant number, since it is smaller than the sum of its proper divisors (375466014).

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

288432234 is a wasteful number, since it uses less digits than its factorization.

288432234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159 (or 3156 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 288432234 is about 16983.2927902689. The cubic root of 288432234 is about 660.7156562206.

The spelling of 288432234 in words is "two hundred eighty-eight million, four hundred thirty-two thousand, two hundred thirty-four".