744483390 has 64 divisors (see below), whose sum is σ = 2047127040. Its totient is φ = 169741440.

The previous prime is 744483379. The next prime is 744483391. The reversal of 744483390 is 93384447.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744483391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83760 + ... + 92220.

It is an arithmetic number, because the mean of its divisors is an integer number (31986360).

Almost surely, 2^744483390 is an apocalyptic number.

744483390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 744483390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023563520).

744483390 is an abundant number, since it is smaller than the sum of its proper divisors (1302643650).

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

744483390 is a wasteful number, since it uses less digits than its factorization.

744483390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8897.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 744483390 is about 27285.2229237732. Note that the first 3 decimals coincide. The cubic root of 744483390 is about 906.3271798557.

The spelling of 744483390 in words is "seven hundred forty-four million, four hundred eighty-three thousand, three hundred ninety".