233949870 has 320 divisors, whose sum is σ = 816279552. Its totient is φ = 47044800.

The previous prime is 233949851. The next prime is 233949871. The reversal of 233949870 is 78949332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233949871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7546755 + ... + 7546785.

Almost surely, 2^233949870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233949870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408139776).

233949870 is an abundant number, since it is smaller than the sum of its proper divisors (582329682).

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

233949870 is a wasteful number, since it uses less digits than its factorization.

233949870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 233949870 is about 15295.4199027029. The cubic root of 233949870 is about 616.1800069172.

The spelling of 233949870 in words is "two hundred thirty-three million, nine hundred forty-nine thousand, eight hundred seventy".