744620 has 24 divisors (see below), whose sum is σ = 1615488. Its totient is φ = 288000.

The previous prime is 744607. The next prime is 744637. The reversal of 744620 is 26447.

It is a nialpdrome in base 15.

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 7 ways as a sum of consecutive naturals, for example, 20 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (67312).

2⁷⁴⁴⁶²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807744).

744620 is an abundant number, since it is smaller than the sum of its proper divisors (870868).

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

744620 is a wasteful number, since it uses less digits than its factorization.

744620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 744620 is about 862.9136689148. The cubic root of 744620 is about 90.6382612381.

It can be divided in two parts, 744 and 620, that multiplied together give a triangular number (461280 = T₉₆₀).

The spelling of 744620 in words is "seven hundred forty-four thousand, six hundred twenty".