4011431 has 4 divisors (see below), whose sum is σ = 4140864. Its totient is φ = 3882000.

The previous prime is 4011409. The next prime is 4011443. The reversal of 4011431 is 1341104.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4011431 is a prime.

It is a super-2 number, since 2×4011431² = 32183157335522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011331) 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, 64670 + ... + 64731.

It is an arithmetic number, because the mean of its divisors is an integer number (1035216).

Almost surely, 2^4011431 is an apocalyptic number.

4011431 is a deficient number, since it is larger than the sum of its proper divisors (129433).

4011431 is a wasteful number, since it uses less digits than its factorization.

4011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129432.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 4011431 is about 2002.8557112283. The cubic root of 4011431 is about 158.8911745605.

Adding to 4011431 its reverse (1341104), we get a palindrome (5352535).

The spelling of 4011431 in words is "four million, eleven thousand, four hundred thirty-one".