919380634 has 4 divisors (see below), whose sum is σ = 1379070954. Its totient is φ = 459690316.

The previous prime is 919380629. The next prime is 919380661. The reversal of 919380634 is 436083919.

919380634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 835383409 + 83997225 = 28903^2 + 9165^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229845157 + ... + 229845160.

Almost surely, 2^919380634 is an apocalyptic number.

919380634 is a deficient number, since it is larger than the sum of its proper divisors (459690320).

919380634 is a wasteful number, since it uses less digits than its factorization.

919380634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459690319.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 919380634 is about 30321.2901110754. The cubic root of 919380634 is about 972.3705205369.

The spelling of 919380634 in words is "nine hundred nineteen million, three hundred eighty thousand, six hundred thirty-four".