49578930 has 48 divisors (see below), whose sum is σ = 129878424. Its totient is φ = 13121280.

The previous prime is 49578929. The next prime is 49578941. The reversal of 49578930 is 3987594.

49578930 is a `hidden beast` number, since 49 + 578 + 9 + 30 = 666.

49578930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29517489 + 20061441 = 5433^2 + 4479^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10320 + ... + 14340.

Almost surely, 2^49578930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49578930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64939212).

49578930 is an abundant number, since it is smaller than the sum of its proper divisors (80299494).

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

49578930 is a wasteful number, since it uses less digits than its factorization.

49578930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171 (or 4168 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49578930 is about 7041.2307162882. The cubic root of 49578930 is about 367.3660764274.

The spelling of 49578930 in words is "forty-nine million, five hundred seventy-eight thousand, nine hundred thirty".