2878378 has 16 divisors (see below), whose sum is σ = 4491144. Its totient is φ = 1382400.

The previous prime is 2878373. The next prime is 2878391. The reversal of 2878378 is 8738782.

It can be written as a sum of positive squares in 4 ways, for example, as 2812329 + 66049 = 1677^2 + 257^2 .

It is not an unprimeable number, because it can be changed into a prime (2878373) 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, 6978 + ... + 7378.

2^2878378 is an apocalyptic number.

2878378 is a deficient number, since it is larger than the sum of its proper divisors (1612766).

2878378 is a wasteful number, since it uses less digits than its factorization.

2878378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 150528, while the sum is 43.

The square root of 2878378 is about 1696.5783212101. The cubic root of 2878378 is about 142.2490175298.

The spelling of 2878378 in words is "two million, eight hundred seventy-eight thousand, three hundred seventy-eight".