49970538 has 36 divisors (see below), whose sum is σ = 112165638. Its totient is φ = 16077600.

The previous prime is 49970533. The next prime is 49970549. The reversal of 49970538 is 83507994.

49970538 is a `hidden beast` number, since 49 + 9 + 70 + 538 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 37417689 + 12552849 = 6117^2 + 3543^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49970493 and 49970502.

It is not an unprimeable number, because it can be changed into a prime (49970533) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 13488 + ... + 16788.

Almost surely, 2^49970538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49970538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56082819).

49970538 is an abundant number, since it is smaller than the sum of its proper divisors (62195100).

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

49970538 is a wasteful number, since it uses less digits than its factorization.

49970538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49970538 is about 7068.9842268886. The cubic root of 49970538 is about 368.3307763564.

The spelling of 49970538 in words is "forty-nine million, nine hundred seventy thousand, five hundred thirty-eight".