2478898 has 4 divisors (see below), whose sum is σ = 3718350. Its totient is φ = 1239448.

The previous prime is 2478877. The next prime is 2478899. The reversal of 2478898 is 8988742.

2478898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2455489 + 23409 = 1567^2 + 153^2 .

It is a super-2 number, since 2×2478898² = 12289870588808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619723 + ... + 619726.

2^2478898 is an apocalyptic number.

2478898 is a deficient number, since it is larger than the sum of its proper divisors (1239452).

2478898 is a wasteful number, since it uses less digits than its factorization.

2478898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239451.

The product of its digits is 258048, while the sum is 46.

The square root of 2478898 is about 1574.4516505755. The cubic root of 2478898 is about 135.3379370793.

The spelling of 2478898 in words is "two million, four hundred seventy-eight thousand, eight hundred ninety-eight".