1212424416 has 96 divisors (see below), whose sum is σ = 4041434880. Its totient is φ = 346405248.

The previous prime is 1212424403. The next prime is 1212424427. The reversal of 1212424416 is 6144242121.

1212424416 is a `hidden beast` number, since 1 + 2 + 1 + 242 + 4 + 416 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×1212424416³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1212424416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94186 + ... + 106281.

It is an arithmetic number, because the mean of its divisors is an integer number (42098280).

Almost surely, 2^1212424416 is an apocalyptic number.

1212424416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1212424416 is an abundant number, since it is smaller than the sum of its proper divisors (2829010464).

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

1212424416 is a wasteful number, since it uses less digits than its factorization.

1212424416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200493 (or 200479 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1212424416 is about 34819.8853530565. The cubic root of 1212424416 is about 1066.3134597911.

Adding to 1212424416 its reverse (6144242121), we get a palindrome (7356666537).

The spelling of 1212424416 in words is "one billion, two hundred twelve million, four hundred twenty-four thousand, four hundred sixteen".