2143004402 has 64 divisors (see below), whose sum is σ = 4078080000. Its totient is φ = 820385280.

The previous prime is 2143004351. The next prime is 2143004407. The reversal of 2143004402 is 2044003412.

It is not an unprimeable number, because it can be changed into a prime (2143004407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4294349 + ... + 4294847.

It is an arithmetic number, because the mean of its divisors is an integer number (63720000).

Almost surely, 2^2143004402 is an apocalyptic number.

2143004402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2143004402 is a deficient number, since it is larger than the sum of its proper divisors (1935075598).

2143004402 is a wasteful number, since it uses less digits than its factorization.

2143004402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2143004402 is about 46292.5955418358. The cubic root of 2143004402 is about 1289.2615211214.

Adding to 2143004402 its reverse (2044003412), we get a palindrome (4187007814).

The spelling of 2143004402 in words is "two billion, one hundred forty-three million, four thousand, four hundred two".