391206048 has 96 divisors (see below), whose sum is σ = 1089446400. Its totient is φ = 122570496.

The previous prime is 391206043. The next prime is 391206059. The reversal of 391206048 is 840602193.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (391206041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252765 + ... + 254307.

It is an arithmetic number, because the mean of its divisors is an integer number (11348400).

Almost surely, 2^391206048 is an apocalyptic number.

391206048 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391206048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544723200).

391206048 is an abundant number, since it is smaller than the sum of its proper divisors (698240352).

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

391206048 is a wasteful number, since it uses less digits than its factorization.

391206048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 391206048 is about 19778.9293946867. The cubic root of 391206048 is about 731.3667071816.

The spelling of 391206048 in words is "three hundred ninety-one million, two hundred six thousand, forty-eight".