386490700 has 36 divisors (see below), whose sum is σ = 844836552. Its totient is φ = 153462400.

The previous prime is 386490697. The next prime is 386490703. The reversal of 386490700 is 7094683.

It is an interprime number because it is at equal distance from previous prime (386490697) and next prime (386490703).

It is a super-2 number, since 2×386490700² = 298750122372980000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 386490700.

It is not an unprimeable number, because it can be changed into a prime (386490703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406 + ... + 27805.

It is an arithmetic number, because the mean of its divisors is an integer number (23467682).

Almost surely, 2^386490700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386490700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422418276).

386490700 is an abundant number, since it is smaller than the sum of its proper divisors (458345852).

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

386490700 is a wasteful number, since it uses less digits than its factorization.

386490700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28362 (or 28355 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 386490700 is about 19659.3667242869. The cubic root of 386490700 is about 728.4163454906.

The spelling of 386490700 in words is "three hundred eighty-six million, four hundred ninety thousand, seven hundred".