391448348 has 6 divisors (see below), whose sum is σ = 685034616. Its totient is φ = 195724172.

The previous prime is 391448333. The next prime is 391448363. The reversal of 391448348 is 843844193.

It is an interprime number because it is at equal distance from previous prime (391448333) and next prime (391448363).

It is a junction number, because it is equal to n+sod(n) for n = 391448299 and 391448308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48931040 + ... + 48931047.

It is an arithmetic number, because the mean of its divisors is an integer number (114172436).

Almost surely, 2^391448348 is an apocalyptic number.

It is an amenable number.

391448348 is a deficient number, since it is larger than the sum of its proper divisors (293586268).

391448348 is a wasteful number, since it uses less digits than its factorization.

391448348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97862091 (or 97862089 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 391448348 is about 19785.0536516836. The cubic root of 391448348 is about 731.5176707473.

The spelling of 391448348 in words is "three hundred ninety-one million, four hundred forty-eight thousand, three hundred forty-eight".