391082022240 has 576 divisors, whose sum is σ = 1572453279936. Its totient is φ = 80953786368.

The previous prime is 391082022181. The next prime is 391082022257. The reversal of 391082022240 is 42220280193.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16193214 + ... + 16217346.

It is an arithmetic number, because the mean of its divisors is an integer number (2729953611).

Almost surely, 2^391082022240 is an apocalyptic number.

391082022240 is a gapful number since it is divisible by the number (30) 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 391082022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786226639968).

391082022240 is an abundant number, since it is smaller than the sum of its proper divisors (1181371257696).

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

391082022240 is a wasteful number, since it uses less digits than its factorization.

391082022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24231 (or 24216 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 391082022240 in words is "three hundred ninety-one billion, eighty-two million, twenty-two thousand, two hundred forty".