3042405 has 48 divisors (see below), whose sum is σ = 5778864. Its totient is φ = 1474560.

The previous prime is 3042401. The next prime is 3042407. The reversal of 3042405 is 5042403.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 159201 + 2883204 = 399^2 + 1698^2 .

It is not a de Polignac number, because 3042405 - 2² = 3042401 is a prime.

3042405 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3042401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31317 + ... + 31413.

It is an arithmetic number, because the mean of its divisors is an integer number (120393).

Almost surely, 2^3042405 is an apocalyptic number.

It is an amenable number.

3042405 is a deficient number, since it is larger than the sum of its proper divisors (2736459).

3042405 is a wasteful number, since it uses less digits than its factorization.

3042405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3042405 is about 1744.2491221153. The cubic root of 3042405 is about 144.9013200959.

Adding to 3042405 its reverse (5042403), we get a palindrome (8084808).

The spelling of 3042405 in words is "three million, forty-two thousand, four hundred five".