49669380 has 36 divisors (see below), whose sum is σ = 150664332. Its totient is φ = 13245120.

The previous prime is 49669379. The next prime is 49669453. The reversal of 49669380 is 8396694.

49669380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14243076 + 35426304 = 3774^2 + 5952^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 11 ways as a sum of consecutive naturals, for example, 137791 + ... + 138150.

Almost surely, 2^49669380 is an apocalyptic number.

It is an amenable number.

49669380 is an abundant number, since it is smaller than the sum of its proper divisors (100994952).

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

49669380 is a wasteful number, since it uses less digits than its factorization.

49669380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275956 (or 275951 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 49669380 is about 7047.6506723872. The cubic root of 49669380 is about 367.5893438198.

The spelling of 49669380 in words is "forty-nine million, six hundred sixty-nine thousand, three hundred eighty".