386649028920 has 1152 divisors, whose sum is σ = 1562827714560. Its totient is φ = 74815488000.

The previous prime is 386649028919. The next prime is 386649028921. The reversal of 386649028920 is 29820946683.

It is an interprime number because it is at equal distance from previous prime (386649028919) and next prime (386649028921).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386649028921) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 5296562004 + ... + 5296562076.

It is an arithmetic number, because the mean of its divisors is an integer number (1356621280).

Almost surely, 2^386649028920 is an apocalyptic number.

386649028920 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 386649028920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781413857280).

386649028920 is an abundant number, since it is smaller than the sum of its proper divisors (1176178685640).

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

386649028920 is a wasteful number, since it uses less digits than its factorization.

386649028920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 386649028920 in words is "three hundred eighty-six billion, six hundred forty-nine million, twenty-eight thousand, nine hundred twenty".