49893890 has 16 divisors (see below), whose sum is σ = 90736632. Its totient is φ = 19751424.

The previous prime is 49893887. The next prime is 49893941. The reversal of 49893890 is 9839894.

It can be written as a sum of positive squares in 4 ways, for example, as 48288601 + 1605289 = 6949^2 + 1267^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24749 + ... + 26688.

Almost surely, 2^49893890 is an apocalyptic number.

49893890 is a deficient number, since it is larger than the sum of its proper divisors (40842742).

49893890 is a wasteful number, since it uses less digits than its factorization.

49893890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51541.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 49893890 is about 7063.5607168057. The cubic root of 49893890 is about 368.1423569038.

The spelling of 49893890 in words is "forty-nine million, eight hundred ninety-three thousand, eight hundred ninety".