386157240 has 192 divisors, whose sum is σ = 1497549600. Its totient is φ = 88252416.

The previous prime is 386157223. The next prime is 386157253. The reversal of 386157240 is 42751683.

386157240 is a `hidden beast` number, since 3 + 86 + 1 + 572 + 4 + 0 = 666.

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 = 386157195 and 386157204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49272 + ... + 56568.

Almost surely, 2^386157240 is an apocalyptic number.

386157240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386157240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748774800).

386157240 is an abundant number, since it is smaller than the sum of its proper divisors (1111392360).

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

386157240 is a wasteful number, since it uses less digits than its factorization.

386157240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331 (or 7314 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 386157240 is about 19650.8839495835. The cubic root of 386157240 is about 728.2067952957.

The spelling of 386157240 in words is "three hundred eighty-six million, one hundred fifty-seven thousand, two hundred forty".