2420784 has 30 divisors (see below), whose sum is σ = 6775236. Its totient is φ = 806880.

The previous prime is 2420779. The next prime is 2420801. The reversal of 2420784 is 4870242.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8262 + ... + 8549.

2^2420784 is an apocalyptic number.

2420784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2420784 is an abundant number, since it is smaller than the sum of its proper divisors (4354452).

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

2420784 is a wasteful number, since it uses less digits than its factorization.

2420784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16825 (or 16816 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2420784 is about 1555.8868853487. The cubic root of 2420784 is about 134.2719656536.

The spelling of 2420784 in words is "two million, four hundred twenty thousand, seven hundred eighty-four".