745560409 has 8 divisors (see below), whose sum is σ = 813925728. Its totient is φ = 677292960.

The previous prime is 745560407. The next prime is 745560419. The reversal of 745560409 is 904065547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745560409 - 2¹ = 745560407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745560407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8052 + ... + 39445.

It is an arithmetic number, because the mean of its divisors is an integer number (101740716).

Almost surely, 2^745560409 is an apocalyptic number.

It is an amenable number.

745560409 is a deficient number, since it is larger than the sum of its proper divisors (68365319).

745560409 is a wasteful number, since it uses less digits than its factorization.

745560409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48935.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 745560409 is about 27304.9520966436. The cubic root of 745560409 is about 906.7640202526.

The spelling of 745560409 in words is "seven hundred forty-five million, five hundred sixty thousand, four hundred nine".