1040531328 has 96 divisors (see below), whose sum is σ = 3010550400. Its totient is φ = 344954880.

The previous prime is 1040531321. The next prime is 1040531363. The reversal of 1040531328 is 8231350401.

It is a happy number.

1040531328 is a `hidden beast` number, since 104 + 0 + 531 + 3 + 28 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040531321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217668 + ... + 222396.

It is an arithmetic number, because the mean of its divisors is an integer number (31359900).

Almost surely, 2^1040531328 is an apocalyptic number.

1040531328 is a gapful number since it is divisible by the number (18) 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 1040531328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505275200).

1040531328 is an abundant number, since it is smaller than the sum of its proper divisors (1970019072).

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

1040531328 is a wasteful number, since it uses less digits than its factorization.

1040531328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4925 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1040531328 is about 32257.2678322266. The cubic root of 1040531328 is about 1013.3319128943.

Adding to 1040531328 its reverse (8231350401), we get a palindrome (9271881729).

The spelling of 1040531328 in words is "one billion, forty million, five hundred thirty-one thousand, three hundred twenty-eight".