1211424 has 24 divisors (see below), whose sum is σ = 3180240. Its totient is φ = 403776.

The previous prime is 1211423. The next prime is 1211443. The reversal of 1211424 is 4241121.

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

It is a super-3 number, since 3×1211424³ = 5333468996743299072, which contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1211423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6214 + ... + 6405.

It is an arithmetic number, because the mean of its divisors is an integer number (132510).

2^1211424 is an apocalyptic number.

It is an amenable number.

1211424 is an abundant number, since it is smaller than the sum of its proper divisors (1968816).

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

1211424 is a wasteful number, since it uses less digits than its factorization.

1211424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12632 (or 12624 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 1211424 is about 1100.6470824020. The cubic root of 1211424 is about 106.6020094263.

Adding to 1211424 its reverse (4241121), we get a palindrome (5452545).

The spelling of 1211424 in words is "one million, two hundred eleven thousand, four hundred twenty-four".