4349981 has 4 divisors (see below), whose sum is σ = 4376832. Its totient is φ = 4323132.

The previous prime is 4349959. The next prime is 4349987. The reversal of 4349981 is 1899434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4349981 - 2¹⁴ = 4333597 is a prime.

It is a super-2 number, since 2×4349981² = 37844669400722, 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 (4349987) 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, 13181 + ... + 13506.

It is an arithmetic number, because the mean of its divisors is an integer number (1094208).

Almost surely, 2^4349981 is an apocalyptic number.

It is an amenable number.

4349981 is a deficient number, since it is larger than the sum of its proper divisors (26851).

4349981 is a wasteful number, since it uses less digits than its factorization.

4349981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26850.

The product of its digits is 31104, while the sum is 38.

The square root of 4349981 is about 2085.6608065551. The cubic root of 4349981 is about 163.2409524334.

The spelling of 4349981 in words is "four million, three hundred forty-nine thousand, nine hundred eighty-one".