2978425 has 12 divisors (see below), whose sum is σ = 3730540. Its totient is φ = 2358720.

The previous prime is 2978419. The next prime is 2978429. The reversal of 2978425 is 5248792.

It can be written as a sum of positive squares in 6 ways, for example, as 246016 + 2732409 = 496^2 + 1653^2 .

It is not a de Polignac number, because 2978425 - 2⁹ = 2977913 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2978429) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2179 + ... + 3271.

2^2978425 is an apocalyptic number.

2978425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2978425 is a deficient number, since it is larger than the sum of its proper divisors (752115).

2978425 is a wasteful number, since it uses less digits than its factorization.

2978425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1207 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 2978425 is about 1725.8114033694. The cubic root of 2978425 is about 143.8783856175.

It can be divided in two parts, 2978 and 425, that added together give a triangular number (3403 = T₈₂).

The spelling of 2978425 in words is "two million, nine hundred seventy-eight thousand, four hundred twenty-five".