385156433 has 4 divisors (see below), whose sum is σ = 385500528. Its totient is φ = 384812340.

The previous prime is 385156423. The next prime is 385156463. The reversal of 385156433 is 334651583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385156433 - 2⁴ = 385156417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385156423) 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, 170363 + ... + 172608.

It is an arithmetic number, because the mean of its divisors is an integer number (96375132).

Almost surely, 2^385156433 is an apocalyptic number.

It is an amenable number.

385156433 is a deficient number, since it is larger than the sum of its proper divisors (344095).

385156433 is a wasteful number, since it uses less digits than its factorization.

385156433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344094.

The product of its digits is 129600, while the sum is 38.

The square root of 385156433 is about 19625.4027474597. The cubic root of 385156433 is about 727.5771511177.

The spelling of 385156433 in words is "three hundred eighty-five million, one hundred fifty-six thousand, four hundred thirty-three".