2904140 has 12 divisors (see below), whose sum is σ = 6098736. Its totient is φ = 1161648.

The previous prime is 2904137. The next prime is 2904163. The reversal of 2904140 is 414092.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 145207 = 2904140 / (2 + 9 + 0 + 4 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72584 + ... + 72623.

It is an arithmetic number, because the mean of its divisors is an integer number (508228).

2^2904140 is an apocalyptic number.

2904140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2904140 is an abundant number, since it is smaller than the sum of its proper divisors (3194596).

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

2904140 is a wasteful number, since it uses less digits than its factorization.

2904140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145216 (or 145214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2904140 is about 1704.1537489323. The cubic root of 2904140 is about 142.6721424321.

The spelling of 2904140 in words is "two million, nine hundred four thousand, one hundred forty".