203422442 has 32 divisors (see below), whose sum is σ = 342921600. Its totient is φ = 89993728.

The previous prime is 203422441. The next prime is 203422447. The reversal of 203422442 is 244224302.

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

It is not an unprimeable number, because it can be changed into a prime (203422441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43934 + ... + 48342.

It is an arithmetic number, because the mean of its divisors is an integer number (10716300).

Almost surely, 2^203422442 is an apocalyptic number.

203422442 is a deficient number, since it is larger than the sum of its proper divisors (139499158).

203422442 is a wasteful number, since it uses less digits than its factorization.

203422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 203422442 is about 14262.6239521345. The cubic root of 203422442 is about 588.1204594553.

Adding to 203422442 its reverse (244224302), we get a palindrome (447646744).

The spelling of 203422442 in words is "two hundred three million, four hundred twenty-two thousand, four hundred forty-two".