2878425 has 36 divisors (see below), whose sum is σ = 5629104. Its totient is φ = 1394400.

The previous prime is 2878409. The next prime is 2878429. The reversal of 2878425 is 5248782.

2878425 = 215² + 216² + ... + 264².

It is a happy number.

It is not a de Polignac number, because 2878425 - 2⁴ = 2878409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2878425.

It is not an unprimeable number, because it can be changed into a prime (2878429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1894 + ... + 3056.

It is an arithmetic number, because the mean of its divisors is an integer number (156364).

2^2878425 is an apocalyptic number.

2878425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2878425 is a deficient number, since it is larger than the sum of its proper divisors (2750679).

2878425 is a wasteful number, since it uses less digits than its factorization.

2878425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1182 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2878425 is about 1696.5921725624. The cubic root of 2878425 is about 142.2497917700.

The spelling of 2878425 in words is "two million, eight hundred seventy-eight thousand, four hundred twenty-five".