386813340 has 48 divisors (see below), whose sum is σ = 1203420960. Its totient is φ = 103150080.

The previous prime is 386813269. The next prime is 386813341. The reversal of 386813340 is 43318683.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 386813295 and 386813304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386813341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357621 + ... + 358700.

It is an arithmetic number, because the mean of its divisors is an integer number (25071270).

Almost surely, 2^386813340 is an apocalyptic number.

386813340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

386813340 is an abundant number, since it is smaller than the sum of its proper divisors (816607620).

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

386813340 is a wasteful number, since it uses less digits than its factorization.

386813340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716339 (or 716331 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 386813340 is about 19667.5707701790. The cubic root of 386813340 is about 728.6189815724.

The spelling of 386813340 in words is "three hundred eighty-six million, eight hundred thirteen thousand, three hundred forty".