386371240 has 32 divisors (see below), whose sum is σ = 920474280. Its totient is φ = 145457152.

The previous prime is 386371229. The next prime is 386371247. The reversal of 386371240 is 42173683.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 354267684 + 32103556 = 18822^2 + 5666^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 386371196 and 386371205.

It is not an unprimeable number, because it can be changed into a prime (386371247) 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, 283417 + ... + 284776.

Almost surely, 2^386371240 is an apocalyptic number.

It is an amenable number.

386371240 is an abundant number, since it is smaller than the sum of its proper divisors (534103040).

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

386371240 is a wasteful number, since it uses less digits than its factorization.

386371240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568221 (or 568217 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 386371240 is about 19656.3282430875. The cubic root of 386371240 is about 728.3412892788.

The spelling of 386371240 in words is "three hundred eighty-six million, three hundred seventy-one thousand, two hundred forty".