49444920 has 144 divisors (see below), whose sum is σ = 186998760. Its totient is φ = 11297664.

The previous prime is 49444873. The next prime is 49444939. The reversal of 49444920 is 2944494.

It is a happy number.

49444920 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 2×49444920² = 4889600227612800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 35 ways as a sum of consecutive naturals, for example, 16239 + ... + 19041.

Almost surely, 2^49444920 is an apocalyptic number.

49444920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49444920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93499380).

49444920 is an abundant number, since it is smaller than the sum of its proper divisors (137553840).

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

49444920 is a wasteful number, since it uses less digits than its factorization.

49444920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 49444920 is about 7031.7081850714. The cubic root of 49444920 is about 367.0347854878.

The spelling of 49444920 in words is "forty-nine million, four hundred forty-four thousand, nine hundred twenty".