745640896 has 224 divisors, whose sum is σ = 2023676928. Its totient is φ = 263208960.

The previous prime is 745640891. The next prime is 745640911. The reversal of 745640896 is 698046547.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745640891) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6598536 + ... + 6598648.

It is an arithmetic number, because the mean of its divisors is an integer number (9034272).

Almost surely, 2^745640896 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 745640896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011838464).

745640896 is an abundant number, since it is smaller than the sum of its proper divisors (1278036032).

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

745640896 is a wasteful number, since it uses less digits than its factorization.

745640896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 745640896 is about 27306.4259103970. The cubic root of 745640896 is about 906.7966489923.

The spelling of 745640896 in words is "seven hundred forty-five million, six hundred forty thousand, eight hundred ninety-six".