49928644 has 12 divisors (see below), whose sum is σ = 88357500. Its totient is φ = 24683648.

The previous prime is 49928629. The next prime is 49928647. The reversal of 49928644 is 44682994.

It can be written as a sum of positive squares in 2 ways, for example, as 14976900 + 34951744 = 3870^2 + 5912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49928594 and 49928603.

It is not an unprimeable number, because it can be changed into a prime (49928647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69769 + ... + 70480.

It is an arithmetic number, because the mean of its divisors is an integer number (7363125).

Almost surely, 2^49928644 is an apocalyptic number.

It is an amenable number.

49928644 is a deficient number, since it is larger than the sum of its proper divisors (38428856).

49928644 is a wasteful number, since it uses less digits than its factorization.

49928644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140342 (or 140340 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 49928644 is about 7066.0203792517. The cubic root of 49928644 is about 368.2278145950.

The spelling of 49928644 in words is "forty-nine million, nine hundred twenty-eight thousand, six hundred forty-four".