11421960 has 128 divisors (see below), whose sum is σ = 39657600. Its totient is φ = 2600960.

The previous prime is 11421953. The next prime is 11421967. The reversal of 11421960 is 6912411.

It is an interprime number because it is at equal distance from previous prime (11421953) and next prime (11421967).

It is a super-2 number, since 2×11421960² = 260922340483200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11421960.

It is not an unprimeable number, because it can be changed into a prime (11421967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22186 + ... + 22694.

It is an arithmetic number, because the mean of its divisors is an integer number (309825).

Almost surely, 2^11421960 is an apocalyptic number.

11421960 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 11421960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19828800).

11421960 is an abundant number, since it is smaller than the sum of its proper divisors (28235640).

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

11421960 is a wasteful number, since it uses less digits than its factorization.

11421960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11421960 is about 3379.6390339798. The cubic root of 11421960 is about 225.2061320836.

The spelling of 11421960 in words is "eleven million, four hundred twenty-one thousand, nine hundred sixty".