1041323440 has 80 divisors (see below), whose sum is σ = 2569871232. Its totient is φ = 391053312.

The previous prime is 1041323401. The next prime is 1041323441. The reversal of 1041323440 is 443231401.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1041323441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784057 + ... + 785383.

Almost surely, 2^1041323440 is an apocalyptic number.

1041323440 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 1041323440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284935616).

1041323440 is an abundant number, since it is smaller than the sum of its proper divisors (1528547792).

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

1041323440 is a wasteful number, since it uses less digits than its factorization.

1041323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1041323440 is about 32269.5435356622. The cubic root of 1041323440 is about 1013.5889830893.

Adding to 1041323440 its reverse (443231401), we get a palindrome (1484554841).

The spelling of 1041323440 in words is "one billion, forty-one million, three hundred twenty-three thousand, four hundred forty".