2820408 has 16 divisors (see below), whose sum is σ = 7051080. Its totient is φ = 940128.

The previous prime is 2820407. The next prime is 2820479. The reversal of 2820408 is 8040282.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 117517 = 2820408 / (2 + 8 + 2 + 0 + 4 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58735 + ... + 58782.

2^2820408 is an apocalyptic number.

It is an amenable number.

2820408 is an abundant number, since it is smaller than the sum of its proper divisors (4230672).

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

2820408 is a wasteful number, since it uses less digits than its factorization.

2820408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117526 (or 117522 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 2820408 is about 1679.4070382132. The cubic root of 2820408 is about 141.2875776493.

The spelling of 2820408 in words is "two million, eight hundred twenty thousand, four hundred eight".