1040213244 has 24 divisors (see below), whose sum is σ = 2773902208. Its totient is φ = 297203760.

The previous prime is 1040213243. The next prime is 1040213263. The reversal of 1040213244 is 4423120401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1040213244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040213243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6191662 + ... + 6191829.

Almost surely, 2^1040213244 is an apocalyptic number.

1040213244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1040213244 is an abundant number, since it is smaller than the sum of its proper divisors (1733688964).

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

1040213244 is a wasteful number, since it uses less digits than its factorization.

1040213244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12383505 (or 12383503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1040213244 is about 32252.3370316013. The cubic root of 1040213244 is about 1013.2286459353.

Adding to 1040213244 its reverse (4423120401), we get a palindrome (5463333645).

The spelling of 1040213244 in words is "one billion, forty million, two hundred thirteen thousand, two hundred forty-four".