386490894 has 16 divisors (see below), whose sum is σ = 813665280. Its totient is φ = 122049720.

The previous prime is 386490883. The next prime is 386490899. The reversal of 386490894 is 498094683.

It is a happy number.

It is a super-2 number, since 2×386490894² = 298750422289838472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386490899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695022 + ... + 1695249.

It is an arithmetic number, because the mean of its divisors is an integer number (50854080).

Almost surely, 2^386490894 is an apocalyptic number.

386490894 is an abundant number, since it is smaller than the sum of its proper divisors (427174386).

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

386490894 is a wasteful number, since it uses less digits than its factorization.

386490894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390295.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 386490894 is about 19659.3716583211. The cubic root of 386490894 is about 728.4164673674.

The spelling of 386490894 in words is "three hundred eighty-six million, four hundred ninety thousand, eight hundred ninety-four".