48991998 has 32 divisors (see below), whose sum is σ = 107148672. Its totient is φ = 14810400.

The previous prime is 48991963. The next prime is 48992003. The reversal of 48991998 is 89919984.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43065 + ... + 44187.

It is an arithmetic number, because the mean of its divisors is an integer number (3348396).

Almost surely, 2^48991998 is an apocalyptic number.

48991998 is an abundant number, since it is smaller than the sum of its proper divisors (58156674).

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

48991998 is a wasteful number, since it uses less digits than its factorization.

48991998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its digits is 1679616, while the sum is 57.

The square root of 48991998 is about 6999.4284052342. The cubic root of 48991998 is about 365.9106503503.

The spelling of 48991998 in words is "forty-eight million, nine hundred ninety-one thousand, nine hundred ninety-eight".