4001204431 has 4 divisors (see below), whose sum is σ = 4572805072. Its totient is φ = 3429603792.

The previous prime is 4001204411. The next prime is 4001204477. The reversal of 4001204431 is 1344021004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4001204431 - 2²⁹ = 3464333519 is a prime.

It is a super-2 number, since 2×4001204431² = 32019273797308067522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4001204399 and 4001204408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001204401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285800310 + ... + 285800323.

It is an arithmetic number, because the mean of its divisors is an integer number (1143201268).

Almost surely, 2^4001204431 is an apocalyptic number.

4001204431 is a deficient number, since it is larger than the sum of its proper divisors (571600641).

4001204431 is an equidigital number, since it uses as much as digits as its factorization.

4001204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571600640.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4001204431 is about 63255.0743498101. The cubic root of 4001204431 is about 1587.5603622325.

Adding to 4001204431 its reverse (1344021004), we get a palindrome (5345225435).

The spelling of 4001204431 in words is "four billion, one million, two hundred four thousand, four hundred thirty-one".