919340389 has 8 divisors (see below), whose sum is σ = 1005016320. Its totient is φ = 834014400.

The previous prime is 919340341. The next prime is 919340407. The reversal of 919340389 is 983043919.

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

It is a cyclic number.

It is not a de Polignac number, because 919340389 - 2¹¹ = 919338341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919340329) 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, 81972 + ... + 92509.

It is an arithmetic number, because the mean of its divisors is an integer number (125627040).

Almost surely, 2^919340389 is an apocalyptic number.

It is an amenable number.

919340389 is a deficient number, since it is larger than the sum of its proper divisors (85675931).

919340389 is a wasteful number, since it uses less digits than its factorization.

919340389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174971.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 919340389 is about 30320.6264612062. The cubic root of 919340389 is about 972.3563321361.

The spelling of 919340389 in words is "nine hundred nineteen million, three hundred forty thousand, three hundred eighty-nine".