1229003040 has 96 divisors (see below), whose sum is σ = 3937066560. Its totient is φ = 322171904.

The previous prime is 1229003033. The next prime is 1229003057. The reversal of 1229003040 is 403009221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1229002998 and 1229003016.

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, 6622 + ... + 50018.

It is an arithmetic number, because the mean of its divisors is an integer number (41011110).

Almost surely, 2^1229003040 is an apocalyptic number.

1229003040 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 1229003040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968533280).

1229003040 is an abundant number, since it is smaller than the sum of its proper divisors (2708063520).

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

1229003040 is a wasteful number, since it uses less digits than its factorization.

1229003040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43474 (or 43466 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1229003040 is about 35057.1396437302. The cubic root of 1229003040 is about 1071.1517106612.

The spelling of 1229003040 in words is "one billion, two hundred twenty-nine million, three thousand, forty".