4391049 has 32 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 2460672.

The previous prime is 4391041. The next prime is 4391063. The reversal of 4391049 is 9401934.

It is not a de Polignac number, because 4391049 - 2³ = 4391041 is a prime.

It is a super-2 number, since 2×4391049² = 38562622640802, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4391041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24442 + ... + 24620.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

Almost surely, 2^4391049 is an apocalyptic number.

It is an amenable number.

4391049 is a deficient number, since it is larger than the sum of its proper divisors (2503671).

4391049 is a wasteful number, since it uses less digits than its factorization.

4391049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 4391049 is about 2095.4829992152. The cubic root of 4391049 is about 163.7530613417.

The spelling of 4391049 in words is "four million, three hundred ninety-one thousand, forty-nine".