49417728 has 40 divisors (see below), whose sum is σ = 131656008. Its totient is φ = 16472064.

The previous prime is 49417723. The next prime is 49417729. The reversal of 49417728 is 82771494.

It is a happy number.

It is a super-2 number, since 2×49417728² = 4884223681363968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49417728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49417723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14551 + ... + 17622.

Almost surely, 2^49417728 is an apocalyptic number.

49417728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49417728 is an abundant number, since it is smaller than the sum of its proper divisors (82238280).

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

49417728 is an equidigital number, since it uses as much as digits as its factorization.

49417728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32194 (or 32178 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 49417728 is about 7029.7743918279. The cubic root of 49417728 is about 366.9674901350.

The spelling of 49417728 in words is "forty-nine million, four hundred seventeen thousand, seven hundred twenty-eight".