386540807 has 8 divisors (see below), whose sum is σ = 408120960. Its totient is φ = 365084280.

The previous prime is 386540773. The next prime is 386540839. The reversal of 386540807 is 708045683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 386540807 - 2¹⁸ = 386278663 is a prime.

It is a super-2 number, since 2×386540807² = 298827590952422498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386540857) 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, 24443 + ... + 37020.

It is an arithmetic number, because the mean of its divisors is an integer number (51015120).

Almost surely, 2^386540807 is an apocalyptic number.

386540807 is a deficient number, since it is larger than the sum of its proper divisors (21580153).

386540807 is a wasteful number, since it uses less digits than its factorization.

386540807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61813.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 386540807 is about 19660.6410627935. The cubic root of 386540807 is about 728.4478229023.

The spelling of 386540807 in words is "three hundred eighty-six million, five hundred forty thousand, eight hundred seven".