2002403453 has 8 divisors (see below), whose sum is σ = 2011806720. Its totient is φ = 1993012000.

The previous prime is 2002403449. The next prime is 2002403461. The reversal of 2002403453 is 3543042002.

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 2002403453 - 2² = 2002403449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002403413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672953 + ... + 675921.

It is an arithmetic number, because the mean of its divisors is an integer number (251475840).

Almost surely, 2^2002403453 is an apocalyptic number.

It is an amenable number.

2002403453 is a deficient number, since it is larger than the sum of its proper divisors (9403267).

2002403453 is a wasteful number, since it uses less digits than its factorization.

2002403453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2002403453 is about 44748.2229032618. Note that the first 3 decimals coincide. The cubic root of 2002403453 is about 1260.4255413664.

Adding to 2002403453 its reverse (3543042002), we get a palindrome (5545445455).

The spelling of 2002403453 in words is "two billion, two million, four hundred three thousand, four hundred fifty-three".