14212440 has 192 divisors, whose sum is σ = 52284960. Its totient is φ = 3317760.

The previous prime is 14212439. The next prime is 14212447. The reversal of 14212440 is 4421241.

14212440 is a `hidden beast` number, since 1 + 421 + 244 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14212447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146472 + ... + 146568.

Almost surely, 2^14212440 is an apocalyptic number.

14212440 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 14212440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26142480).

14212440 is an abundant number, since it is smaller than the sum of its proper divisors (38072520).

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

14212440 is a wasteful number, since it uses less digits than its factorization.

14212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 14212440 is about 3769.9389915488. The cubic root of 14212440 is about 242.2271846035.

Adding to 14212440 its reverse (4421241), we get a palindrome (18633681).

The spelling of 14212440 in words is "fourteen million, two hundred twelve thousand, four hundred forty".