745737489 has 16 divisors (see below), whose sum is σ = 1262624640. Its totient is φ = 426135600.

The previous prime is 745737469. The next prime is 745737491. The reversal of 745737489 is 984737547.

It is not a de Polignac number, because 745737489 - 2¹⁹ = 745213201 is a prime.

It is a super-2 number, since 2×745737489² = 1112248805000050242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745737409) 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, 1972662 + ... + 1973039.

It is an arithmetic number, because the mean of its divisors is an integer number (78914040).

Almost surely, 2^745737489 is an apocalyptic number.

It is an amenable number.

745737489 is a deficient number, since it is larger than the sum of its proper divisors (516887151).

745737489 is a wasteful number, since it uses less digits than its factorization.

745737489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945717 (or 3945711 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 745737489 is about 27308.1945393686. The cubic root of 745737489 is about 906.8358038666.

The spelling of 745737489 in words is "seven hundred forty-five million, seven hundred thirty-seven thousand, four hundred eighty-nine".