203015442 has 32 divisors (see below), whose sum is σ = 471648384. Its totient is φ = 57052800.

The previous prime is 203015441. The next prime is 203015453. The reversal of 203015442 is 244510302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (203015441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37059 + ... + 42182.

It is an arithmetic number, because the mean of its divisors is an integer number (14739012).

Almost surely, 2^203015442 is an apocalyptic number.

203015442 is an abundant number, since it is smaller than the sum of its proper divisors (268632942).

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

203015442 is a wasteful number, since it uses less digits than its factorization.

203015442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79314.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 203015442 is about 14248.3487464337. The cubic root of 203015442 is about 587.7279677849.

Adding to 203015442 its reverse (244510302), we get a palindrome (447525744).

The spelling of 203015442 in words is "two hundred three million, fifteen thousand, four hundred forty-two".