11979450 has 72 divisors (see below), whose sum is σ = 36792288. Its totient is φ = 2737440.

The previous prime is 11979439. The next prime is 11979463. The reversal of 11979450 is 5497911.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1249 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (511004).

Almost surely, 2^11979450 is an apocalyptic number.

11979450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11979450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18396144).

11979450 is an abundant number, since it is smaller than the sum of its proper divisors (24812838).

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

11979450 is a wasteful number, since it uses less digits than its factorization.

11979450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 11979450 is about 3461.1342071639. The cubic root of 11979450 is about 228.8120856291.

The spelling of 11979450 in words is "eleven million, nine hundred seventy-nine thousand, four hundred fifty".