745889472 has 168 divisors, whose sum is σ = 2250673680. Its totient is φ = 245223936.

The previous prime is 745889453. The next prime is 745889531. The reversal of 745889472 is 274988547.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

745889472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×745889472² = 1112702208880877568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10217628 + ... + 10217700.

Almost surely, 2^745889472 is an apocalyptic number.

745889472 is a gapful number since it is divisible by the number (72) 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 745889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125336840).

745889472 is an abundant number, since it is smaller than the sum of its proper divisors (1504784208).

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

745889472 is an frugal number, since it uses more digits than its factorization.

745889472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 78 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 745889472 is about 27310.9771337461. The cubic root of 745889472 is about 906.8974047499.

The spelling of 745889472 in words is "seven hundred forty-five million, eight hundred eighty-nine thousand, four hundred seventy-two".