49494780 has 96 divisors (see below), whose sum is σ = 155258880. Its totient is φ = 13089600.

The previous prime is 49494779. The next prime is 49494833. The reversal of 49494780 is 8749494.

49494780 is a `hidden beast` number, since 494 + 94 + 78 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81237 + ... + 81843.

It is an arithmetic number, because the mean of its divisors is an integer number (1617280).

Almost surely, 2^49494780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49494780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77629440).

49494780 is an abundant number, since it is smaller than the sum of its proper divisors (105764100).

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

49494780 is a wasteful number, since it uses less digits than its factorization.

49494780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 49494780 is about 7035.2526607081. The cubic root of 49494780 is about 367.1581160310.

The spelling of 49494780 in words is "forty-nine million, four hundred ninety-four thousand, seven hundred eighty".