4340091 has 16 divisors (see below), whose sum is σ = 6649344. Its totient is φ = 2466624.

The previous prime is 4340087. The next prime is 4340131. The reversal of 4340091 is 1900434.

4340091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4340091 - 2² = 4340087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

4340091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4340081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4450 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (415584).

Almost surely, 2^4340091 is an apocalyptic number.

4340091 is a deficient number, since it is larger than the sum of its proper divisors (2309253).

4340091 is a wasteful number, since it uses less digits than its factorization.

4340091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4340091 is about 2083.2885061844. The cubic root of 4340091 is about 163.1171451422.

The spelling of 4340091 in words is "four million, three hundred forty thousand, ninety-one".