386386340 has 12 divisors (see below), whose sum is σ = 811411356. Its totient is φ = 154554528.

The previous prime is 386386333. The next prime is 386386349. The reversal of 386386340 is 43683683.

It can be written as a sum of positive squares in 2 ways, for example, as 179774464 + 206611876 = 13408^2 + 14374^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (386386349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9659639 + ... + 9659678.

It is an arithmetic number, because the mean of its divisors is an integer number (67617613).

Almost surely, 2^386386340 is an apocalyptic number.

It is an amenable number.

386386340 is an abundant number, since it is smaller than the sum of its proper divisors (425025016).

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

386386340 is a wasteful number, since it uses less digits than its factorization.

386386340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19319326 (or 19319324 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 386386340 is about 19656.7123395546. The cubic root of 386386340 is about 728.3507773990.

The spelling of 386386340 in words is "three hundred eighty-six million, three hundred eighty-six thousand, three hundred forty".