742780516 has 9 divisors (see below), whose sum is σ = 1299961299. Its totient is φ = 371363004.

The previous prime is 742780499. The next prime is 742780573. The reversal of 742780516 is 615087247.

The square root of 742780516 is 27254.

It is a perfect power (a square), and thus also a powerful number.

742780516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 47695 + ... + 61321.

Almost surely, 2^742780516 is an apocalyptic number.

742780516 is the 27254-th square number.

It is an amenable number.

742780516 is a deficient number, since it is larger than the sum of its proper divisors (557180783).

742780516 is an frugal number, since it uses more digits than its factorization.

742780516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27258 (or 13629 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The cubic root of 742780516 is about 905.6356313134.

The spelling of 742780516 in words is "seven hundred forty-two million, seven hundred eighty thousand, five hundred sixteen".