385513343 has 4 divisors (see below), whose sum is σ = 387969000. Its totient is φ = 383057688.

The previous prime is 385513339. The next prime is 385513367. The reversal of 385513343 is 343315583.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385513343 - 2² = 385513339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385513313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227593 + ... + 1227906.

It is an arithmetic number, because the mean of its divisors is an integer number (96992250).

Almost surely, 2^385513343 is an apocalyptic number.

385513343 is a deficient number, since it is larger than the sum of its proper divisors (2455657).

385513343 is a wasteful number, since it uses less digits than its factorization.

385513343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455656.

The product of its digits is 64800, while the sum is 35.

The square root of 385513343 is about 19634.4937036838. The cubic root of 385513343 is about 727.8018212069.

The spelling of 385513343 in words is "three hundred eighty-five million, five hundred thirteen thousand, three hundred forty-three".