49009998 has 8 divisors (see below), whose sum is σ = 98020008. Its totient is φ = 16336664.

The previous prime is 49009993. The next prime is 49009999. The reversal of 49009998 is 89990094.

It is a happy number.

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

49009998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49009993) 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, 4084161 + ... + 4084172.

It is an arithmetic number, because the mean of its divisors is an integer number (12252501).

Almost surely, 2^49009998 is an apocalyptic number.

49009998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49009998 is a wasteful number, since it uses less digits than its factorization.

49009998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168338.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 49009998 is about 7000.7141064323. The cubic root of 49009998 is about 365.9554575672.

Subtracting from 49009998 its sum of digits (48), we obtain a triangular number (49009950 = T₉₉₀₀).

The spelling of 49009998 in words is "forty-nine million, nine thousand, nine hundred ninety-eight".