2003421442 has 24 divisors (see below), whose sum is σ = 3417075900. Its totient is φ = 879241440.

The previous prime is 2003421437. The next prime is 2003421451. The reversal of 2003421442 is 2441243002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2003368081 + 53361 = 44759^2 + 231^2 .

It is a super-3 number, since 3×2003421442³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135717 + ... + 149752.

Almost surely, 2^2003421442 is an apocalyptic number.

2003421442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2003421442 is a deficient number, since it is larger than the sum of its proper divisors (1413654458).

2003421442 is a wasteful number, since it uses less digits than its factorization.

2003421442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285522 (or 285511 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2003421442 is about 44759.5960884367. The cubic root of 2003421442 is about 1260.6390983897.

Adding to 2003421442 its reverse (2441243002), we get a palindrome (4444664444).

The spelling of 2003421442 in words is "two billion, three million, four hundred twenty-one thousand, four hundred forty-two".