4389090 has 32 divisors (see below), whose sum is σ = 10993536. Its totient is φ = 1119360.

The previous prime is 4389083. The next prime is 4389131. The reversal of 4389090 is 909834.

It is a super-2 number, since 2×4389090² = 38528222056200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (343548).

Almost surely, 2^4389090 is an apocalyptic number.

4389090 is an abundant number, since it is smaller than the sum of its proper divisors (6604446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4389090 is a wasteful number, since it uses less digits than its factorization.

4389090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6394.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4389090 is about 2095.0155130691. The cubic root of 4389090 is about 163.7287057367.

The spelling of 4389090 in words is "four million, three hundred eighty-nine thousand, ninety".