1224790000 has 100 divisors (see below), whose sum is σ = 3389152624. Its totient is φ = 419904000.

The previous prime is 1224789991. The next prime is 1224790013. The reversal of 1224790000 is 974221.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×1224790000² = 3000221088200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 61252 + ... + 78748.

Almost surely, 2^1224790000 is an apocalyptic number.

1224790000 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 1224790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694576312).

1224790000 is an abundant number, since it is smaller than the sum of its proper divisors (2164362624).

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

1224790000 is an equidigital number, since it uses as much as digits as its factorization.

1224790000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532 (or 17511 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1224790000 is about 34996.9998714175. Note that the first 3 decimals coincide. The cubic root of 1224790000 is about 1069.9263349292.

The spelling of 1224790000 in words is "one billion, two hundred twenty-four million, seven hundred ninety thousand".