49649690 has 16 divisors (see below), whose sum is σ = 94626792. Its totient is φ = 18691584.

The previous prime is 49649651. The next prime is 49649701. The reversal of 49649690 is 9694694.

49649690 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 4 ways, for example, as 49519369 + 130321 = 7037^2 + 361^2 .

It is a super-2 number, since 2×49649690² = 4930183434192200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 145859 + ... + 146198.

Almost surely, 2^49649690 is an apocalyptic number.

49649690 is a deficient number, since it is larger than the sum of its proper divisors (44977102).

49649690 is a wasteful number, since it uses less digits than its factorization.

49649690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292081.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 49649690 is about 7046.2536145103. The cubic root of 49649690 is about 367.5407639851.

The spelling of 49649690 in words is "forty-nine million, six hundred forty-nine thousand, six hundred ninety".