203229972 has 120 divisors (see below), whose sum is σ = 585446400. Its totient is φ = 60963840.

The previous prime is 203229967. The next prime is 203229991. The reversal of 203229972 is 279922302.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 452404 + ... + 452852.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2^203229972 is an apocalyptic number.

203229972 is a gapful number since it is divisible by the number (22) 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 203229972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292723200).

203229972 is an abundant number, since it is smaller than the sum of its proper divisors (382216428).

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

203229972 is a wasteful number, since it uses less digits than its factorization.

203229972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 203229972 is about 14255.8749994520. The cubic root of 203229972 is about 587.9349157450.

The spelling of 203229972 in words is "two hundred three million, two hundred twenty-nine thousand, nine hundred seventy-two".