742066645 has 8 divisors (see below), whose sum is σ = 921186360. Its totient is φ = 573182400.

The previous prime is 742066627. The next prime is 742066649. The reversal of 742066645 is 546660247.

742066645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34187409 + 707879236 = 5847^2 + 26606^2 .

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

It is not a de Polignac number, because 742066645 - 2⁵ = 742066613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742066598 and 742066607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742066649) 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, 2558706 + ... + 2558995.

It is an arithmetic number, because the mean of its divisors is an integer number (115148295).

Almost surely, 2^742066645 is an apocalyptic number.

It is an amenable number.

742066645 is a deficient number, since it is larger than the sum of its proper divisors (179119715).

742066645 is a wasteful number, since it uses less digits than its factorization.

742066645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117735.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 742066645 is about 27240.9002237444. The cubic root of 742066645 is about 905.3454090897.

The spelling of 742066645 in words is "seven hundred forty-two million, sixty-six thousand, six hundred forty-five".