4626440 has 128 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 1382400.

The previous prime is 4626439. The next prime is 4626449. The reversal of 4626440 is 446264.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (4626449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112820 + ... + 112860.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

Almost surely, 2^4626440 is an apocalyptic number.

4626440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4626440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6773760).

4626440 is an abundant number, since it is smaller than the sum of its proper divisors (8921080).

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

4626440 is a wasteful number, since it uses less digits than its factorization.

4626440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4626440 is about 2150.9160839047. The cubic root of 4626440 is about 166.6283823176.

The spelling of 4626440 in words is "four million, six hundred twenty-six thousand, four hundred forty".