391620096 has 400 divisors, whose sum is σ = 1425980160. Its totient is φ = 104509440.

The previous prime is 391620091. The next prime is 391620101. The reversal of 391620096 is 690026193.

It is an interprime number because it is at equal distance from previous prime (391620091) and next prime (391620101).

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 391620096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391620091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5515741 + ... + 5515811.

Almost surely, 2^391620096 is an apocalyptic number.

391620096 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 391620096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712990080).

391620096 is an abundant number, since it is smaller than the sum of its proper divisors (1034360064).

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

391620096 is an equidigital number, since it uses as much as digits as its factorization.

391620096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 391620096 is about 19789.3935227940. The cubic root of 391620096 is about 731.6246395872.

The spelling of 391620096 in words is "three hundred ninety-one million, six hundred twenty thousand, ninety-six".