203240988 has 60 divisors (see below), whose sum is σ = 533284752. Its totient is φ = 67495680.

The previous prime is 203240969. The next prime is 203241011. The reversal of 203240988 is 889042302.

It is a super-2 number, since 2×203240988² = 82613798406432288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 99756 + ... + 101772.

Almost surely, 2^203240988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203240988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266642376).

203240988 is an abundant number, since it is smaller than the sum of its proper divisors (330043764).

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

203240988 is a wasteful number, since it uses less digits than its factorization.

203240988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 2333 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 203240988 is about 14256.2613612405. The cubic root of 203240988 is about 587.9455384794.

The spelling of 203240988 in words is "two hundred three million, two hundred forty thousand, nine hundred eighty-eight".