4591626 has 48 divisors (see below), whose sum is σ = 10400544. Its totient is φ = 1342656.

The previous prime is 4591621. The next prime is 4591633. The reversal of 4591626 is 6261954.

Its product of digits (12960) is a multiple of the sum of its prime factors (135).

It is not an unprimeable number, because it can be changed into a prime (4591621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106761 + ... + 106803.

It is an arithmetic number, because the mean of its divisors is an integer number (216678).

Almost surely, 2^4591626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4591626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5200272).

4591626 is an abundant number, since it is smaller than the sum of its proper divisors (5808918).

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

4591626 is a wasteful number, since it uses less digits than its factorization.

4591626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 98 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 4591626 is about 2142.8079708644. The cubic root of 4591626 is about 166.2093695347.

The spelling of 4591626 in words is "four million, five hundred ninety-one thousand, six hundred twenty-six".