49669780 has 48 divisors (see below), whose sum is σ = 107202816. Its totient is φ = 19324800.

The previous prime is 49669769. The next prime is 49669783. The reversal of 49669780 is 8796694.

49669780 = T₁₁₈₄ + T₁₁₈₅ + ... + T₁₂₅₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49669783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135157 + ... + 135523.

It is an arithmetic number, because the mean of its divisors is an integer number (2233392).

Almost surely, 2^49669780 is an apocalyptic number.

It is an amenable number.

49669780 is an abundant number, since it is smaller than the sum of its proper divisors (57533036).

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

49669780 is a wasteful number, since it uses less digits than its factorization.

49669780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 49669780 is about 7047.6790505811. The cubic root of 49669780 is about 367.5903305803.

The spelling of 49669780 in words is "forty-nine million, six hundred sixty-nine thousand, seven hundred eighty".