11998080 has 96 divisors (see below), whose sum is σ = 41450760. Its totient is φ = 3197952.

The previous prime is 11998067. The next prime is 11998121. The reversal of 11998080 is 8089911.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 4719 + ... + 6801.

Almost surely, 2^11998080 is an apocalyptic number.

11998080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20725380).

11998080 is an abundant number, since it is smaller than the sum of its proper divisors (29452680).

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

11998080 is a wasteful number, since it uses less digits than its factorization.

11998080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 11998080 is about 3463.8244759225. The cubic root of 11998080 is about 228.9306375741.

The spelling of 11998080 in words is "eleven million, nine hundred ninety-eight thousand, eighty".