2489784 has 32 divisors (see below), whose sum is σ = 6791040. Its totient is φ = 754400.

The previous prime is 2489777. The next prime is 2489789. The reversal of 2489784 is 4879842.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489789) 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, 4452 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (212220).

2^2489784 is an apocalyptic number.

2489784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2489784 is an abundant number, since it is smaller than the sum of its proper divisors (4301256).

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

2489784 is a wasteful number, since it uses less digits than its factorization.

2489784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451 (or 9447 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2489784 is about 1577.9049401025. The cubic root of 2489784 is about 135.5357585032.

The spelling of 2489784 in words is "two million, four hundred eighty-nine thousand, seven hundred eighty-four".