2878416 has 50 divisors (see below), whose sum is σ = 8334722. Its totient is φ = 959040.

The previous prime is 2878409. The next prime is 2878429. The reversal of 2878416 is 6148782.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 254016 = 1620^2 + 504^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 186 + ... + 2406.

2^2878416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4167361).

2878416 is an abundant number, since it is smaller than the sum of its proper divisors (5456306).

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

2878416 is a wasteful number, since it uses less digits than its factorization.

2878416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2226 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2878416 is about 1696.5895201845. The cubic root of 2878416 is about 142.2496435119.

The spelling of 2878416 in words is "two million, eight hundred seventy-eight thousand, four hundred sixteen".