49778198 has 8 divisors (see below), whose sum is σ = 74845920. Its totient is φ = 24829560.

The previous prime is 49778177. The next prime is 49778213. The reversal of 49778198 is 89187794.

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

It is a super-2 number, since 2×49778198² = 4955737992254408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28718 + ... + 30401.

It is an arithmetic number, because the mean of its divisors is an integer number (9355740).

Almost surely, 2^49778198 is an apocalyptic number.

49778198 is a deficient number, since it is larger than the sum of its proper divisors (25067722).

49778198 is a wasteful number, since it uses less digits than its factorization.

49778198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59542.

The product of its digits is 1016064, while the sum is 53.

The square root of 49778198 is about 7055.3666098935. The cubic root of 49778198 is about 367.8575919919.

The spelling of 49778198 in words is "forty-nine million, seven hundred seventy-eight thousand, one hundred ninety-eight".