4445670 has 64 divisors (see below), whose sum is σ = 11819520. Its totient is φ = 1064448.

The previous prime is 4445663. The next prime is 4445681. The reversal of 4445670 is 765444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11541 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

Almost surely, 2^4445670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5909760).

4445670 is an abundant number, since it is smaller than the sum of its proper divisors (7373850).

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

4445670 is a wasteful number, since it uses less digits than its factorization.

4445670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 4445670 is about 2108.4757527655. The cubic root of 4445670 is about 164.4292492994.

It can be divided in two parts, 4445 and 670, that added together give a palindrome (5115).

The spelling of 4445670 in words is "four million, four hundred forty-five thousand, six hundred seventy".