386122506 has 64 divisors (see below), whose sum is σ = 968564736. Its totient is φ = 99691200.

The previous prime is 386122487. The next prime is 386122507. The reversal of 386122506 is 605221683.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (386122507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77511 + ... + 82341.

It is an arithmetic number, because the mean of its divisors is an integer number (15133824).

Almost surely, 2^386122506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386122506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484282368).

386122506 is an abundant number, since it is smaller than the sum of its proper divisors (582442230).

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

386122506 is a wasteful number, since it uses less digits than its factorization.

386122506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 386122506 is about 19650.0001526718. Note that the first 3 decimals coincide. The cubic root of 386122506 is about 728.1849611043.

The spelling of 386122506 in words is "three hundred eighty-six million, one hundred twenty-two thousand, five hundred six".