49739219 has 4 divisors (see below), whose sum is σ = 49901544. Its totient is φ = 49576896.

The previous prime is 49739213. The next prime is 49739233. The reversal of 49739219 is 91293794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49739219 - 2¹² = 49735123 is a prime.

It is a super-2 number, since 2×49739219² = 4947979813459922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49739219.

It is not an unprimeable number, because it can be changed into a prime (49739213) 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, 80702 + ... + 81315.

It is an arithmetic number, because the mean of its divisors is an integer number (12475386).

Almost surely, 2^49739219 is an apocalyptic number.

49739219 is a deficient number, since it is larger than the sum of its proper divisors (162325).

49739219 is a wasteful number, since it uses less digits than its factorization.

49739219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162324.

The product of its digits is 122472, while the sum is 44.

The square root of 49739219 is about 7052.6037035977. The cubic root of 49739219 is about 367.7615495078.

The spelling of 49739219 in words is "forty-nine million, seven hundred thirty-nine thousand, two hundred nineteen".