49990186 has 8 divisors (see below), whose sum is σ = 75686400. Its totient is φ = 24761388.

The previous prime is 49990147. The next prime is 49990189. The reversal of 49990186 is 68109994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (49990189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116586 + ... + 117013.

It is an arithmetic number, because the mean of its divisors is an integer number (9460800).

Almost surely, 2^49990186 is an apocalyptic number.

49990186 is a deficient number, since it is larger than the sum of its proper divisors (25696214).

49990186 is a wasteful number, since it uses less digits than its factorization.

49990186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233708.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49990186 is about 7070.3738232147. The cubic root of 49990186 is about 368.3790448968.

It can be divided in two parts, 49990 and 186, that added together give a square (50176 = 224²).

The spelling of 49990186 in words is "forty-nine million, nine hundred ninety thousand, one hundred eighty-six".