396149396280 has 256 divisors, whose sum is σ = 1348397107200. Its totient is φ = 92256952320.

The previous prime is 396149396267. The next prime is 396149396303. The reversal of 396149396280 is 82693941693.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 63 ways as a sum of consecutive naturals, for example, 3807024 + ... + 3909696.

It is an arithmetic number, because the mean of its divisors is an integer number (5267176200).

Almost surely, 2^396149396280 is an apocalyptic number.

396149396280 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 396149396280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674198553600).

396149396280 is an abundant number, since it is smaller than the sum of its proper divisors (952247710920).

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

396149396280 is a wasteful number, since it uses less digits than its factorization.

396149396280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102814 (or 102810 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 60.

The spelling of 396149396280 in words is "three hundred ninety-six billion, one hundred forty-nine million, three hundred ninety-six thousand, two hundred eighty".