49928645 has 8 divisors (see below), whose sum is σ = 64523256. Its totient is φ = 36870336.

The previous prime is 49928629. The next prime is 49928647. The reversal of 49928645 is 54682994.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 49928356 = 17^2 + 7066^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49928645 - 2⁴ = 49928629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49928645.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 384002 + ... + 384131.

It is an arithmetic number, because the mean of its divisors is an integer number (8065407).

Almost surely, 2^49928645 is an apocalyptic number.

It is an amenable number.

49928645 is a deficient number, since it is larger than the sum of its proper divisors (14594611).

49928645 is a wasteful number, since it uses less digits than its factorization.

49928645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768151.

The product of its digits is 622080, while the sum is 47.

The square root of 49928645 is about 7066.0204500129. The cubic root of 49928645 is about 368.2278170534.

The spelling of 49928645 in words is "forty-nine million, nine hundred twenty-eight thousand, six hundred forty-five".