745243044 has 192 divisors, whose sum is σ = 2245501440. Its totient is φ = 187084800.

The previous prime is 745243003. The next prime is 745243067. The reversal of 745243044 is 440342547.

It is a junction number, because it is equal to n+sod(n) for n = 745242996 and 745243014.

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 63 ways as a sum of consecutive naturals, for example, 3198352 + ... + 3198584.

It is an arithmetic number, because the mean of its divisors is an integer number (11695320).

Almost surely, 2^745243044 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 745243044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122750720).

745243044 is an abundant number, since it is smaller than the sum of its proper divisors (1500258396).

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

745243044 is a wasteful number, since it uses less digits than its factorization.

745243044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 33.

The square root of 745243044 is about 27299.1399864538. The cubic root of 745243044 is about 906.6353403128.

The spelling of 745243044 in words is "seven hundred forty-five million, two hundred forty-three thousand, forty-four".