2904406 has 4 divisors (see below), whose sum is σ = 4356612. Its totient is φ = 1452202.

The previous prime is 2904403. The next prime is 2904409. The reversal of 2904406 is 6044092.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2904403) and next prime (2904409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2904403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726100 + ... + 726103.

It is an arithmetic number, because the mean of its divisors is an integer number (1089153).

2^2904406 is an apocalyptic number.

2904406 is a deficient number, since it is larger than the sum of its proper divisors (1452206).

2904406 is a wasteful number, since it uses less digits than its factorization.

2904406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452205.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2904406 is about 1704.2317917467. The cubic root of 2904406 is about 142.6764982404.

Adding to 2904406 its reverse (6044092), we get a palindrome (8948498).

The spelling of 2904406 in words is "two million, nine hundred four thousand, four hundred six".