233251998 has 48 divisors (see below), whose sum is σ = 550995840. Its totient is φ = 64482480.

The previous prime is 233251987. The next prime is 233252021. The reversal of 233251998 is 899152332.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37473 + ... + 43251.

It is an arithmetic number, because the mean of its divisors is an integer number (11479080).

Almost surely, 2^233251998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233251998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275497920).

233251998 is an abundant number, since it is smaller than the sum of its proper divisors (317743842).

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

233251998 is a wasteful number, since it uses less digits than its factorization.

233251998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853 (or 5822 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 233251998 is about 15272.5897607446. The cubic root of 233251998 is about 615.5667087756.

The spelling of 233251998 in words is "two hundred thirty-three million, two hundred fifty-one thousand, nine hundred ninety-eight".