385702405 has 8 divisors (see below), whose sum is σ = 504919584. Its totient is φ = 280510800.

The previous prime is 385702391. The next prime is 385702423. The reversal of 385702405 is 504207583.

It is a happy number.

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

It is not a de Polignac number, because 385702405 - 2⁹ = 385701893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3506331 + ... + 3506440.

It is an arithmetic number, because the mean of its divisors is an integer number (63114948).

Almost surely, 2^385702405 is an apocalyptic number.

It is an amenable number.

385702405 is a deficient number, since it is larger than the sum of its proper divisors (119217179).

385702405 is a wasteful number, since it uses less digits than its factorization.

385702405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012787.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 385702405 is about 19639.3076507294. The cubic root of 385702405 is about 727.9207770380.

Adding to 385702405 its reverse (504207583), we get a palindrome (889909988).

The spelling of 385702405 in words is "three hundred eighty-five million, seven hundred two thousand, four hundred five".