11969020 has 96 divisors (see below), whose sum is σ = 31352832. Its totient is φ = 3744768.

The previous prime is 11969017. The next prime is 11969033. The reversal of 11969020 is 2096911.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 11969020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111807 + ... + 111913.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^11969020 is an apocalyptic number.

11969020 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 11969020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15676416).

11969020 is an abundant number, since it is smaller than the sum of its proper divisors (19383812).

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

11969020 is a wasteful number, since it uses less digits than its factorization.

11969020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11969020 is about 3459.6271475406. The cubic root of 11969020 is about 228.7456606819.

The spelling of 11969020 in words is "eleven million, nine hundred sixty-nine thousand, twenty".