203922140 has 96 divisors (see below), whose sum is σ = 480090240. Its totient is φ = 72359936.

The previous prime is 203922109. The next prime is 203922167. The reversal of 203922140 is 41229302.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695834 + ... + 696126.

It is an arithmetic number, because the mean of its divisors is an integer number (5000940).

Almost surely, 2^203922140 is an apocalyptic number.

203922140 is a gapful number since it is divisible by the number (20) 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 203922140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240045120).

203922140 is an abundant number, since it is smaller than the sum of its proper divisors (276168100).

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

203922140 is a wasteful number, since it uses less digits than its factorization.

203922140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 203922140 is about 14280.1309517805. The cubic root of 203922140 is about 588.6016294218.

The spelling of 203922140 in words is "two hundred three million, nine hundred twenty-two thousand, one hundred forty".