4002023403 has 48 divisors (see below), whose sum is σ = 7134804000. Its totient is φ = 2207991744.

The previous prime is 4002023387. The next prime is 4002023411. The reversal of 4002023403 is 3043202004.

It is not a de Polignac number, because 4002023403 - 2⁴ = 4002023387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4002023453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13788 + ... + 90521.

It is an arithmetic number, because the mean of its divisors is an integer number (148641750).

Almost surely, 2^4002023403 is an apocalyptic number.

4002023403 is a deficient number, since it is larger than the sum of its proper divisors (3132780597).

4002023403 is a wasteful number, since it uses less digits than its factorization.

4002023403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104361 (or 104348 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 4002023403 is about 63261.5475861917. The cubic root of 4002023403 is about 1587.6686695193.

Adding to 4002023403 its reverse (3043202004), we get a palindrome (7045225407).

The spelling of 4002023403 in words is "four billion, two million, twenty-three thousand, four hundred three".