49999830 has 32 divisors (see below), whose sum is σ = 126316800. Its totient is φ = 12631392.

The previous prime is 49999819. The next prime is 49999843. The reversal of 49999830 is 3899994.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43290 + ... + 44429.

It is an arithmetic number, because the mean of its divisors is an integer number (3947400).

Almost surely, 2^49999830 is an apocalyptic number.

49999830 is an abundant number, since it is smaller than the sum of its proper divisors (76316970).

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

49999830 is a wasteful number, since it uses less digits than its factorization.

49999830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87748.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 49999830 is about 7071.0557910400. The cubic root of 49999830 is about 368.4027323400.

The spelling of 49999830 in words is "forty-nine million, nine hundred ninety-nine thousand, eight hundred thirty".