2405284 has 12 divisors (see below), whose sum is σ = 4810624. Its totient is φ = 1030824.

The previous prime is 2405269. The next prime is 2405297. The reversal of 2405284 is 4825042.

2405284 = 305² + 306² + ... + 328².

It is a happy number.

2405284 is an admirable number.

It is a super-2 number, since 2×2405284² = 11570782241312, which contains 22 as substring.

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, 42924 + ... + 42979.

2^2405284 is an apocalyptic number.

It is an amenable number.

2405284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2405284 is a wasteful number, since it uses less digits than its factorization.

2405284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85914 (or 85912 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2405284 is about 1550.8978044991. The cubic root of 2405284 is about 133.9847758749.

The spelling of 2405284 in words is "two million, four hundred five thousand, two hundred eighty-four".