7409385 has 12 divisors (see below), whose sum is σ = 12843012. Its totient is φ = 3951648.

The previous prime is 7409377. The next prime is 7409387. The reversal of 7409385 is 5839047.

7409385 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3825936 + 3583449 = 1956^2 + 1893^2 .

It is not a de Polignac number, because 7409385 - 2³ = 7409377 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7409387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82282 + ... + 82371.

It is an arithmetic number, because the mean of its divisors is an integer number (1070251).

Almost surely, 2^7409385 is an apocalyptic number.

It is an amenable number.

7409385 is a deficient number, since it is larger than the sum of its proper divisors (5433627).

7409385 is a wasteful number, since it uses less digits than its factorization.

7409385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164664 (or 164661 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 7409385 is about 2722.0185524717. The cubic root of 7409385 is about 194.9518618848.

The spelling of 7409385 in words is "seven million, four hundred nine thousand, three hundred eighty-five".