385020407 has 2 divisors, whose sum is σ = 385020408. Its totient is φ = 385020406.

The previous prime is 385020401. The next prime is 385020413. The reversal of 385020407 is 704020583.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (385020401) and next prime (385020413).

It is a cyclic number.

It is not a de Polignac number, because 385020407 - 2²⁰ = 383971831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385020407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385020401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192510203 + 192510204.

It is an arithmetic number, because the mean of its divisors is an integer number (192510204).

Almost surely, 2^385020407 is an apocalyptic number.

385020407 is a deficient number, since it is larger than the sum of its proper divisors (1).

385020407 is an equidigital number, since it uses as much as digits as its factorization.

385020407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 385020407 is about 19621.9368819696. The cubic root of 385020407 is about 727.4914880343.

The spelling of 385020407 in words is "three hundred eighty-five million, twenty thousand, four hundred seven".