11901984 has 24 divisors (see below), whose sum is σ = 31242960. Its totient is φ = 3967296.

The previous prime is 11901979. The next prime is 11902001. The reversal of 11901984 is 48910911.

It is a tau number, because it is divible by the number of its divisors (24).

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, 61894 + ... + 62085.

It is an arithmetic number, because the mean of its divisors is an integer number (1301790).

Almost surely, 2^11901984 is an apocalyptic number.

It is an amenable number.

11901984 is an abundant number, since it is smaller than the sum of its proper divisors (19340976).

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

11901984 is a wasteful number, since it uses less digits than its factorization.

11901984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123992 (or 123984 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 11901984 is about 3449.9252165808. The cubic root of 11901984 is about 228.3178085715.

The spelling of 11901984 in words is "eleven million, nine hundred one thousand, nine hundred eighty-four".