49491228 has 24 divisors (see below), whose sum is σ = 116314240. Its totient is φ = 16377840.

The previous prime is 49491217. The next prime is 49491229. The reversal of 49491228 is 82219494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49491229) 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, 13168 + ... + 16503.

Almost surely, 2^49491228 is an apocalyptic number.

It is an amenable number.

49491228 is an abundant number, since it is smaller than the sum of its proper divisors (66823012).

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

49491228 is a wasteful number, since it uses less digits than its factorization.

49491228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29817 (or 29815 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 49491228 is about 7035.0002132196. Note that the first 3 decimals coincide. The cubic root of 49491228 is about 367.1493327692.

The spelling of 49491228 in words is "forty-nine million, four hundred ninety-one thousand, two hundred twenty-eight".