2904840 has 48 divisors (see below), whose sum is σ = 9441900. Its totient is φ = 774528.

The previous prime is 2904829. The next prime is 2904851. The reversal of 2904840 is 484092.

It is an interprime number because it is at equal distance from previous prime (2904829) and next prime (2904851).

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 527076 = 1542^2 + 726^2 .

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3675 + ... + 4394.

2^2904840 is an apocalyptic number.

2904840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2904840 is an abundant number, since it is smaller than the sum of its proper divisors (6537060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2904840 is a wasteful number, since it uses less digits than its factorization.

2904840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086 (or 8079 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2904840 is about 1704.3591170877. The cubic root of 2904840 is about 142.6836045146.

The spelling of 2904840 in words is "two million, nine hundred four thousand, eight hundred forty".