1040223312 has 30 divisors (see below), whose sum is σ = 2911180922. Its totient is φ = 346741056.

The previous prime is 1040223311. The next prime is 1040223329. The reversal of 1040223312 is 2133220401.

It can be written as a sum of positive squares in only one way, i.e., 810882576 + 229340736 = 28476^2 + 15144^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040223311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3611743 + ... + 3612030.

Almost surely, 2^1040223312 is an apocalyptic number.

1040223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1040223312 is an abundant number, since it is smaller than the sum of its proper divisors (1870957610).

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

1040223312 is a wasteful number, since it uses less digits than its factorization.

1040223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223787 (or 7223778 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1040223312 is about 32252.4931129362. The cubic root of 1040223312 is about 1013.2319148654.

Adding to 1040223312 its reverse (2133220401), we get a palindrome (3173443713).

The spelling of 1040223312 in words is "one billion, forty million, two hundred twenty-three thousand, three hundred twelve".