49478478 has 16 divisors (see below), whose sum is σ = 113093760. Its totient is φ = 14136696.

The previous prime is 49478467. The next prime is 49478491. The reversal of 49478478 is 87487494.

It is a self number, because there is not a number n which added to its sum of digits gives 49478478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588988 + ... + 589071.

It is an arithmetic number, because the mean of its divisors is an integer number (7068360).

Almost surely, 2^49478478 is an apocalyptic number.

49478478 is an abundant number, since it is smaller than the sum of its proper divisors (63615282).

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

49478478 is a wasteful number, since it uses less digits than its factorization.

49478478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178071.

The product of its digits is 1806336, while the sum is 51.

The square root of 49478478 is about 7034.0939715076. The cubic root of 49478478 is about 367.1178015516.

The spelling of 49478478 in words is "forty-nine million, four hundred seventy-eight thousand, four hundred seventy-eight".