48991104 has 144 divisors (see below), whose sum is σ = 150607080. Its totient is φ = 15257088.

The previous prime is 48991099. The next prime is 48991141. The reversal of 48991104 is 40119984.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×48991104² = 4800256542277632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1139307 + ... + 1139349.

Almost surely, 2^48991104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48991104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75303540).

48991104 is an abundant number, since it is smaller than the sum of its proper divisors (101615976).

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

48991104 is a wasteful number, since it uses less digits than its factorization.

48991104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 48991104 is about 6999.3645425853. The cubic root of 48991104 is about 365.9084246392.

The spelling of 48991104 in words is "forty-eight million, nine hundred ninety-one thousand, one hundred four".