745956640 has 96 divisors (see below), whose sum is σ = 2070484416. Its totient is φ = 250383360.

The previous prime is 745956613. The next prime is 745956649. The reversal of 745956640 is 46659547.

It is not an unprimeable number, because it can be changed into a prime (745956649) 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 15 ways as a sum of consecutive naturals, for example, 6579 + ... + 39181.

It is an arithmetic number, because the mean of its divisors is an integer number (21567546).

Almost surely, 2^745956640 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 745956640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035242208).

745956640 is an abundant number, since it is smaller than the sum of its proper divisors (1324527776).

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

745956640 is a wasteful number, since it uses less digits than its factorization.

745956640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32642 (or 32634 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 745956640 is about 27312.2067947649. The cubic root of 745956640 is about 906.9246262346.

The spelling of 745956640 in words is "seven hundred forty-five million, nine hundred fifty-six thousand, six hundred forty".