49991198 has 8 divisors (see below), whose sum is σ = 76730808. Its totient is φ = 24414264.

The previous prime is 49991197. The next prime is 49991209. The reversal of 49991198 is 89119994.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49991197) 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, 290561 + ... + 290732.

It is an arithmetic number, because the mean of its divisors is an integer number (9591351).

Almost surely, 2^49991198 is an apocalyptic number.

49991198 is a deficient number, since it is larger than the sum of its proper divisors (26739610).

49991198 is a wasteful number, since it uses less digits than its factorization.

49991198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581338.

The product of its digits is 209952, while the sum is 50.

The square root of 49991198 is about 7070.4453890826. The cubic root of 49991198 is about 368.3815306985.

The spelling of 49991198 in words is "forty-nine million, nine hundred ninety-one thousand, one hundred ninety-eight".