745735560 has 128 divisors (see below), whose sum is σ = 2363904000. Its totient is φ = 187681536.

The previous prime is 745735547. The next prime is 745735561. The reversal of 745735560 is 65537547.

It is a super-2 number, since 2×745735560² = 1112243050897027200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745735561) 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, 863689 + ... + 864551.

It is an arithmetic number, because the mean of its divisors is an integer number (18468000).

Almost surely, 2^745735560 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 745735560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181952000).

745735560 is an abundant number, since it is smaller than the sum of its proper divisors (1618168440).

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

745735560 is a wasteful number, since it uses less digits than its factorization.

745735560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 42.

The square root of 745735560 is about 27308.1592202770. The cubic root of 745735560 is about 906.8350219616.

The spelling of 745735560 in words is "seven hundred forty-five million, seven hundred thirty-five thousand, five hundred sixty".