49221780 has 48 divisors (see below), whose sum is σ = 145078080. Its totient is φ = 12434688.

The previous prime is 49221773. The next prime is 49221791. The reversal of 49221780 is 8712294.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20449 + ... + 22728.

It is an arithmetic number, because the mean of its divisors is an integer number (3022460).

Almost surely, 2^49221780 is an apocalyptic number.

It is an amenable number.

49221780 is an abundant number, since it is smaller than the sum of its proper divisors (95856300).

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

49221780 is a wasteful number, since it uses less digits than its factorization.

49221780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43208 (or 43206 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 49221780 is about 7015.8235439612. The cubic root of 49221780 is about 366.4818223506.

The spelling of 49221780 in words is "forty-nine million, two hundred twenty-one thousand, seven hundred eighty".