1040305412 has 24 divisors (see below), whose sum is σ = 1964001816. Its totient is φ = 480316928.

The previous prime is 1040305391. The next prime is 1040305421. The reversal of 1040305412 is 2145030401.

It can be written as a sum of positive squares in 4 ways, for example, as 95726656 + 944578756 = 9784^2 + 30734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140723 + ... + 147930.

It is an arithmetic number, because the mean of its divisors is an integer number (81833409).

Almost surely, 2^1040305412 is an apocalyptic number.

It is an amenable number.

1040305412 is a deficient number, since it is larger than the sum of its proper divisors (923696404).

1040305412 is a wasteful number, since it uses less digits than its factorization.

1040305412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288727 (or 288725 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1040305412 is about 32253.7658576483. The cubic root of 1040305412 is about 1013.2585707288.

Adding to 1040305412 its reverse (2145030401), we get a palindrome (3185335813).

The spelling of 1040305412 in words is "one billion, forty million, three hundred five thousand, four hundred twelve".