386151840 has 96 divisors (see below), whose sum is σ = 1351546560. Its totient is φ = 102972672.

The previous prime is 386151833. The next prime is 386151851. The reversal of 386151840 is 48151683.

386151840 is a `hidden beast` number, since 38 + 615 + 1 + 8 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×386151840² = 298226487070771200, which contains 22 as substring.

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 = 386151795 and 386151804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40374 + ... + 49013.

It is an arithmetic number, because the mean of its divisors is an integer number (14078610).

Almost surely, 2^386151840 is an apocalyptic number.

386151840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

386151840 is an abundant number, since it is smaller than the sum of its proper divisors (965394720).

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

386151840 is a wasteful number, since it uses less digits than its factorization.

386151840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89411 (or 89397 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 386151840 is about 19650.7465507039. The cubic root of 386151840 is about 728.2034008796.

The spelling of 386151840 in words is "three hundred eighty-six million, one hundred fifty-one thousand, eight hundred forty".