4440390 has 16 divisors (see below), whose sum is σ = 10657008. Its totient is φ = 1184096.

The previous prime is 4440389. The next prime is 4440413. The reversal of 4440390 is 930444.

It is a self number, because there is not a number n which added to its sum of digits gives 4440390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73977 + ... + 74036.

It is an arithmetic number, because the mean of its divisors is an integer number (666063).

Almost surely, 2^4440390 is an apocalyptic number.

4440390 is an abundant number, since it is smaller than the sum of its proper divisors (6216618).

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

4440390 is a wasteful number, since it uses less digits than its factorization.

4440390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148023.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4440390 is about 2107.2232914430. The cubic root of 4440390 is about 164.3641274789.

The spelling of 4440390 in words is "four million, four hundred forty thousand, three hundred ninety".