4001403 has 8 divisors (see below), whose sum is σ = 6097408. Its totient is φ = 2286504.

The previous prime is 4001399. The next prime is 4001407. The reversal of 4001403 is 3041004.

It is an interprime number because it is at equal distance from previous prime (4001399) and next prime (4001407).

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

It is not a de Polignac number, because 4001403 - 2² = 4001399 is a prime.

It is a super-2 number, since 2×4001403² = 32022451936818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001407) 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, 95251 + ... + 95292.

It is an arithmetic number, because the mean of its divisors is an integer number (762176).

Almost surely, 2^4001403 is an apocalyptic number.

4001403 is a deficient number, since it is larger than the sum of its proper divisors (2096005).

4001403 is a wasteful number, since it uses less digits than its factorization.

4001403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190553.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4001403 is about 2000.3507192490. The cubic root of 4001403 is about 158.7586623913.

Adding to 4001403 its reverse (3041004), we get a palindrome (7042407).

The spelling of 4001403 in words is "four million, one thousand, four hundred three".