49819830 has 16 divisors (see below), whose sum is σ = 119567664. Its totient is φ = 13285280.

The previous prime is 49819823. The next prime is 49819853. The reversal of 49819830 is 3891894.

49819830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49819830² = 4964030922457800, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 830301 + ... + 830360.

It is an arithmetic number, because the mean of its divisors is an integer number (7472979).

Almost surely, 2^49819830 is an apocalyptic number.

49819830 is an abundant number, since it is smaller than the sum of its proper divisors (69747834).

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

49819830 is a wasteful number, since it uses less digits than its factorization.

49819830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660671.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 49819830 is about 7058.3163714869. The cubic root of 49819830 is about 367.9601159910.

The spelling of 49819830 in words is "forty-nine million, eight hundred nineteen thousand, eight hundred thirty".