2003421999 has 8 divisors (see below), whose sum is σ = 2671823232. Its totient is φ = 1335317720.

The previous prime is 2003421929. The next prime is 2003422019. The reversal of 2003421999 is 9991243002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2003421999 - 2¹⁶ = 2003356463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003421919) 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, 57987 + ... + 85844.

It is an arithmetic number, because the mean of its divisors is an integer number (333977904).

Almost surely, 2^2003421999 is an apocalyptic number.

2003421999 is a deficient number, since it is larger than the sum of its proper divisors (668401233).

2003421999 is a wasteful number, since it uses less digits than its factorization.

2003421999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148477.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 2003421999 is about 44759.6023105657. The cubic root of 2003421999 is about 1260.6392152191.

The spelling of 2003421999 in words is "two billion, three million, four hundred twenty-one thousand, nine hundred ninety-nine".