2104428 has 24 divisors (see below), whose sum is σ = 4946032. Its totient is φ = 696384.

The previous prime is 2104423. The next prime is 2104433. The reversal of 2104428 is 8244012.

It is an interprime number because it is at equal distance from previous prime (2104423) and next prime (2104433).

It is not an unprimeable number, because it can be changed into a prime (2104423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 2442.

2^2104428 is an apocalyptic number.

It is an amenable number.

2104428 is an abundant number, since it is smaller than the sum of its proper divisors (2841604).

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

2104428 is a wasteful number, since it uses less digits than its factorization.

2104428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2104428 is about 1450.6646752437. The cubic root of 2104428 is about 128.1478597324.

The spelling of 2104428 in words is "two million, one hundred four thousand, four hundred twenty-eight".