9420385 has 16 divisors (see below), whose sum is σ = 12506256. Its totient is φ = 6766848.

The previous prime is 9420347. The next prime is 9420391. The reversal of 9420385 is 5830249.

It can be written as a sum of positive squares in 8 ways, for example, as 154449 + 9265936 = 393^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 9420385 - 2¹¹ = 9418337 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447 + ... + 4363.

It is an arithmetic number, because the mean of its divisors is an integer number (781641).

Almost surely, 2^9420385 is an apocalyptic number.

It is an amenable number.

9420385 is a deficient number, since it is larger than the sum of its proper divisors (3085871).

9420385 is a wasteful number, since it uses less digits than its factorization.

9420385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 9420385 is about 3069.2645698929. The cubic root of 9420385 is about 211.1978782046.

The spelling of 9420385 in words is "nine million, four hundred twenty thousand, three hundred eighty-five".