385380761 has 4 divisors (see below), whose sum is σ = 385534500. Its totient is φ = 385227024.

The previous prime is 385380757. The next prime is 385380767. The reversal of 385380761 is 167083583.

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

It can be written as a sum of positive squares in 2 ways, for example, as 249798025 + 135582736 = 15805^2 + 11644^2 .

It is a cyclic number.

It is not a de Polignac number, because 385380761 - 2² = 385380757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385380767) 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, 73046 + ... + 78143.

It is an arithmetic number, because the mean of its divisors is an integer number (96383625).

Almost surely, 2^385380761 is an apocalyptic number.

It is an amenable number.

385380761 is a deficient number, since it is larger than the sum of its proper divisors (153739).

385380761 is a wasteful number, since it uses less digits than its factorization.

385380761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153738.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 385380761 is about 19631.1171612825. The cubic root of 385380761 is about 727.7183787990.

The spelling of 385380761 in words is "three hundred eighty-five million, three hundred eighty thousand, seven hundred sixty-one".