1226040000 has 280 divisors, whose sum is σ = 4299161328. Its totient is φ = 307200000.

The previous prime is 1226039981. The next prime is 1226040071. The reversal of 1226040000 is 406221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2039700 + ... + 2040300.

Almost surely, 2^1226040000 is an apocalyptic number.

1226040000 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 1226040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149580664).

1226040000 is an abundant number, since it is smaller than the sum of its proper divisors (3073121328).

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

1226040000 is an equidigital number, since it uses as much as digits as its factorization.

1226040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1226040000 is about 35014.8539908422. The cubic root of 1226040000 is about 1070.2901940935.

Adding to 1226040000 its reverse (406221), we get a palindrome (1226446221).

The spelling of 1226040000 in words is "one billion, two hundred twenty-six million, forty thousand".