391468 has 48 divisors (see below), whose sum is σ = 903168. Its totient is φ = 144000.

The previous prime is 391453. The next prime is 391487. The reversal of 391468 is 864193.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an Ulam number.

It is an unprimeable number.

391468 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9528 + ... + 9568.

It is an arithmetic number, because the mean of its divisors is an integer number (18816).

2³⁹¹⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451584).

391468 is an abundant number, since it is smaller than the sum of its proper divisors (511700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391468 is a wasteful number, since it uses less digits than its factorization.

391468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 92 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 391468 is about 625.6740365398. The cubic root of 391468 is about 73.1529912077.

The spelling of 391468 in words is "three hundred ninety-one thousand, four hundred sixty-eight".