385342407 has 8 divisors (see below), whose sum is σ = 570877680. Its totient is φ = 256894920.

The previous prime is 385342403. The next prime is 385342411. The reversal of 385342407 is 704243583.

It is a happy number.

385342407 is a `hidden beast` number, since 385 + 34 + 240 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (385342403) and next prime (385342411).

It is not a de Polignac number, because 385342407 - 2² = 385342403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385342403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7135944 + ... + 7135997.

It is an arithmetic number, because the mean of its divisors is an integer number (71359710).

Almost surely, 2^385342407 is an apocalyptic number.

385342407 is a deficient number, since it is larger than the sum of its proper divisors (185535273).

385342407 is a wasteful number, since it uses less digits than its factorization.

385342407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14271950 (or 14271944 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 385342407 is about 19630.1402694937. The cubic root of 385342407 is about 727.6942365830.

The spelling of 385342407 in words is "three hundred eighty-five million, three hundred forty-two thousand, four hundred seven".