391848034 has 4 divisors (see below), whose sum is σ = 587772054. Its totient is φ = 195924016.

The previous prime is 391848031. The next prime is 391848059. The reversal of 391848034 is 430848193.

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., 247968009 + 143880025 = 15747^2 + 11995^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (391848031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97962007 + ... + 97962010.

Almost surely, 2^391848034 is an apocalyptic number.

391848034 is a deficient number, since it is larger than the sum of its proper divisors (195924020).

391848034 is a wasteful number, since it uses less digits than its factorization.

391848034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195924019.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 391848034 is about 19795.1517801708. The cubic root of 391848034 is about 731.7665566429.

The spelling of 391848034 in words is "three hundred ninety-one million, eight hundred forty-eight thousand, thirty-four".