49170816 has 48 divisors (see below), whose sum is σ = 141497460. Its totient is φ = 16389888.

The previous prime is 49170811. The next prime is 49170857. The reversal of 49170816 is 61807194.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×49170816² = 4835538292211712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49170811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20190 + ... + 22493.

Almost surely, 2^49170816 is an apocalyptic number.

It is an amenable number.

49170816 is an abundant number, since it is smaller than the sum of its proper divisors (92326644).

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

49170816 is a wasteful number, since it uses less digits than its factorization.

49170816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42703 (or 42688 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 49170816 is about 7012.1905279306. The cubic root of 49170816 is about 366.3552941520.

The spelling of 49170816 in words is "forty-nine million, one hundred seventy thousand, eight hundred sixteen".