745805616 has 20 divisors (see below), whose sum is σ = 1926664632. Its totient is φ = 248601856.

The previous prime is 745805579. The next prime is 745805647. The reversal of 745805616 is 616508547.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7768761 + ... + 7768856.

Almost surely, 2^745805616 is an apocalyptic number.

It is an amenable number.

745805616 is an abundant number, since it is smaller than the sum of its proper divisors (1180859016).

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

745805616 is a wasteful number, since it uses less digits than its factorization.

745805616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15537628 (or 15537622 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 745805616 is about 27309.4418837149. The cubic root of 745805616 is about 906.8634177489.

The spelling of 745805616 in words is "seven hundred forty-five million, eight hundred five thousand, six hundred sixteen".