745943580 has 240 divisors, whose sum is σ = 2438384256. Its totient is φ = 190771200.

The previous prime is 745943573. The next prime is 745943587. The reversal of 745943580 is 85349547.

745943580 is a `hidden beast` number, since 7 + 4 + 594 + 3 + 58 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (745943573) and next prime (745943587).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745943587) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7385530 + ... + 7385630.

Almost surely, 2^745943580 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 745943580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219192128).

745943580 is an abundant number, since it is smaller than the sum of its proper divisors (1692440676).

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

745943580 is a wasteful number, since it uses less digits than its factorization.

745943580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 745943580 is about 27311.9677064835. The cubic root of 745943580 is about 906.9193334763.

The spelling of 745943580 in words is "seven hundred forty-five million, nine hundred forty-three thousand, five hundred eighty".