49681970 has 32 divisors (see below), whose sum is σ = 96631920. Its totient is φ = 18282240.

The previous prime is 49681969. The next prime is 49681981. The reversal of 49681970 is 7918694.

49681970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10004569 + 39677401 = 3163^2 + 6299^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59516 + ... + 60344.

Almost surely, 2^49681970 is an apocalyptic number.

49681970 is a deficient number, since it is larger than the sum of its proper divisors (46949950).

49681970 is a wasteful number, since it uses less digits than its factorization.

49681970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 49681970 is about 7048.5438212442. The cubic root of 49681970 is about 367.6203995653.

The spelling of 49681970 in words is "forty-nine million, six hundred eighty-one thousand, nine hundred seventy".