4199381 has 4 divisors (see below), whose sum is σ = 4222764. Its totient is φ = 4176000.

The previous prime is 4199347. The next prime is 4199383. The reversal of 4199381 is 1839914.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1768900 + 2430481 = 1330^2 + 1559^2 .

It is a cyclic number.

It is not a de Polignac number, because 4199381 - 2¹⁰ = 4198357 is a prime.

It is a super-2 number, since 2×4199381² = 35269601566322, 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 (4199383) 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, 11420 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (1055691).

Almost surely, 2^4199381 is an apocalyptic number.

It is an amenable number.

4199381 is a deficient number, since it is larger than the sum of its proper divisors (23383).

4199381 is a wasteful number, since it uses less digits than its factorization.

4199381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382.

The product of its digits is 7776, while the sum is 35.

The square root of 4199381 is about 2049.2391270908. The cubic root of 4199381 is about 161.3349379247.

The spelling of 4199381 in words is "four million, one hundred ninety-nine thousand, three hundred eighty-one".