1040338994 has 16 divisors (see below), whose sum is σ = 1570138776. Its totient is φ = 516969600.

The previous prime is 1040338993. The next prime is 1040338997. The reversal of 1040338994 is 4998330401.

It can be written as a sum of positive squares in 4 ways, for example, as 637815025 + 402523969 = 25255^2 + 20063^2 .

It is not an unprimeable number, because it can be changed into a prime (1040338993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234404 + ... + 238800.

Almost surely, 2^1040338994 is an apocalyptic number.

1040338994 is a deficient number, since it is larger than the sum of its proper divisors (529799782).

1040338994 is a wasteful number, since it uses less digits than its factorization.

1040338994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1040338994 is about 32254.2864438201. The cubic root of 1040338994 is about 1013.2694735794.

The spelling of 1040338994 in words is "one billion, forty million, three hundred thirty-eight thousand, nine hundred ninety-four".