49940880 has 80 divisors (see below), whose sum is σ = 168899904. Its totient is φ = 12106240.

The previous prime is 49940867. The next prime is 49940887. The reversal of 49940880 is 8804994.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (49940887) 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 15 ways as a sum of consecutive naturals, for example, 6819 + ... + 12098.

Almost surely, 2^49940880 is an apocalyptic number.

49940880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49940880 is an abundant number, since it is smaller than the sum of its proper divisors (118959024).

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

49940880 is a wasteful number, since it uses less digits than its factorization.

49940880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944 (or 18938 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 49940880 is about 7066.8861601132. The cubic root of 49940880 is about 368.2578926368.

The spelling of 49940880 in words is "forty-nine million, nine hundred forty thousand, eight hundred eighty".