1212442080 has 192 divisors, whose sum is σ = 3934199808. Its totient is φ = 313712640.

The previous prime is 1212442069. The next prime is 1212442093. The reversal of 1212442080 is 802442121.

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 1212442080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5030760 + ... + 5031000.

It is an arithmetic number, because the mean of its divisors is an integer number (20490624).

Almost surely, 2^1212442080 is an apocalyptic number.

1212442080 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 1212442080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1967099904).

1212442080 is an abundant number, since it is smaller than the sum of its proper divisors (2721757728).

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

1212442080 is a wasteful number, since it uses less digits than its factorization.

1212442080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 1212442080 is about 34820.1390002969. The cubic root of 1212442080 is about 1066.3186381949.

The spelling of 1212442080 in words is "one billion, two hundred twelve million, four hundred forty-two thousand, eighty".