745481568 has 192 divisors, whose sum is σ = 2243808000. Its totient is φ = 214824960.

The previous prime is 745481567. The next prime is 745481573. The reversal of 745481568 is 865184547.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745481563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3532983 + ... + 3533193.

It is an arithmetic number, because the mean of its divisors is an integer number (11686500).

Almost surely, 2^745481568 is an apocalyptic number.

745481568 is a gapful number since it is divisible by the number (78) 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 745481568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121904000).

745481568 is an abundant number, since it is smaller than the sum of its proper divisors (1498326432).

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

745481568 is a wasteful number, since it uses less digits than its factorization.

745481568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 397 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 745481568 is about 27303.5083459983. The cubic root of 745481568 is about 906.7320565103.

The spelling of 745481568 in words is "seven hundred forty-five million, four hundred eighty-one thousand, five hundred sixty-eight".