1219040032 has 108 divisors (see below), whose sum is σ = 2888349030. Its totient is φ = 504967680.

The previous prime is 1219040023. The next prime is 1219040033. The reversal of 1219040032 is 2300409121.

It can be written as a sum of positive squares in only one way, i.e., 820478736 + 398561296 = 28644^2 + 19964^2 .

It is a super-2 number, since 2×1219040032² = 2972117199237122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1219039985 and 1219040012.

It is not an unprimeable number, because it can be changed into a prime (1219040033) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1506444 + ... + 1507252.

Almost surely, 2^1219040032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219040032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444174515).

1219040032 is an abundant number, since it is smaller than the sum of its proper divisors (1669308998).

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

1219040032 is an equidigital number, since it uses as much as digits as its factorization.

1219040032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1219040032 is about 34914.7537869022. The cubic root of 1219040032 is about 1068.2493958573.

Adding to 1219040032 its reverse (2300409121), we get a palindrome (3519449153).

The spelling of 1219040032 in words is "one billion, two hundred nineteen million, forty thousand, thirty-two".