49447780 has 12 divisors (see below), whose sum is σ = 103840380. Its totient is φ = 19779104.

The previous prime is 49447771. The next prime is 49447793. The reversal of 49447780 is 8774494.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36096064 + 13351716 = 6008^2 + 3654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236175 + ... + 1236214.

It is an arithmetic number, because the mean of its divisors is an integer number (8653365).

Almost surely, 2^49447780 is an apocalyptic number.

It is an amenable number.

49447780 is an abundant number, since it is smaller than the sum of its proper divisors (54392600).

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

49447780 is a wasteful number, since it uses less digits than its factorization.

49447780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472398 (or 2472396 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 49447780 is about 7031.9115466564. The cubic root of 49447780 is about 367.0418620439.

The spelling of 49447780 in words is "forty-nine million, four hundred forty-seven thousand, seven hundred eighty".