391332096 has 108 divisors (see below), whose sum is σ = 1164916480. Its totient is φ = 126213120.

The previous prime is 391332089. The next prime is 391332103. The reversal of 391332096 is 690233193.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (391332089) and next prime (391332103).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 391332096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68685 + ... + 74163.

Almost surely, 2^391332096 is an apocalyptic number.

391332096 is a gapful number since it is divisible by the number (36) 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 391332096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582458240).

391332096 is an abundant number, since it is smaller than the sum of its proper divisors (773584384).

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

391332096 is a wasteful number, since it uses less digits than its factorization.

391332096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532 (or 5515 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 391332096 is about 19782.1155592621. The cubic root of 391332096 is about 731.4452484107.

The spelling of 391332096 in words is "three hundred ninety-one million, three hundred thirty-two thousand, ninety-six".