745730774 has 4 divisors (see below), whose sum is σ = 1118596164. Its totient is φ = 372865386.

The previous prime is 745730767. The next prime is 745730779. The reversal of 745730774 is 477037547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×745730774² = 1112228774581278152, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745730779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186432692 + ... + 186432695.

It is an arithmetic number, because the mean of its divisors is an integer number (279649041).

Almost surely, 2^745730774 is an apocalyptic number.

745730774 is a deficient number, since it is larger than the sum of its proper divisors (372865390).

745730774 is a wasteful number, since it uses less digits than its factorization.

745730774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372865389.

The product of its (nonzero) digits is 576240, while the sum is 44.

The square root of 745730774 is about 27308.0715906488. The cubic root of 745730774 is about 906.8330819881.

The spelling of 745730774 in words is "seven hundred forty-five million, seven hundred thirty thousand, seven hundred seventy-four".