203157424 has 40 divisors (see below), whose sum is σ = 415419840. Its totient is φ = 95980608.

The previous prime is 203157421. The next prime is 203157433. The reversal of 203157424 is 424751302.

It is a junction number, because it is equal to n+sod(n) for n = 203157392 and 203157401.

It is not an unprimeable number, because it can be changed into a prime (203157421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170559 + ... + 171745.

It is an arithmetic number, because the mean of its divisors is an integer number (10385496).

Almost surely, 2^203157424 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 203157424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207709920).

203157424 is an abundant number, since it is smaller than the sum of its proper divisors (212262416).

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

203157424 is a wasteful number, since it uses less digits than its factorization.

203157424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777 (or 1771 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 203157424 is about 14253.3302775176. The cubic root of 203157424 is about 587.8649480818.

The spelling of 203157424 in words is "two hundred three million, one hundred fifty-seven thousand, four hundred twenty-four".