385747406 has 8 divisors (see below), whose sum is σ = 631223064. Its totient is φ = 175339720.

The previous prime is 385747339. The next prime is 385747423. The reversal of 385747406 is 604747583.

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

It is a super-2 number, since 2×385747406² = 297602122471457672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8766965 + ... + 8767008.

It is an arithmetic number, because the mean of its divisors is an integer number (78902883).

Almost surely, 2^385747406 is an apocalyptic number.

385747406 is a deficient number, since it is larger than the sum of its proper divisors (245475658).

385747406 is a wasteful number, since it uses less digits than its factorization.

385747406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17533986.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 385747406 is about 19640.4533043410. The cubic root of 385747406 is about 727.9490854683.

The spelling of 385747406 in words is "three hundred eighty-five million, seven hundred forty-seven thousand, four hundred six".