2904520 has 16 divisors (see below), whose sum is σ = 6535260. Its totient is φ = 1161792.

The previous prime is 2904491. The next prime is 2904529. The reversal of 2904520 is 254092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2883204 + 21316 = 1698^2 + 146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2904491 and 2904500.

It is not an unprimeable number, because it can be changed into a prime (2904529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36267 + ... + 36346.

2^2904520 is an apocalyptic number.

2904520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2904520 is an abundant number, since it is smaller than the sum of its proper divisors (3630740).

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

2904520 is a wasteful number, since it uses less digits than its factorization.

2904520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72624 (or 72620 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2904520 is about 1704.2652375731. The cubic root of 2904520 is about 142.6783649339.

The spelling of 2904520 in words is "two million, nine hundred four thousand, five hundred twenty".