1073404040 has 32 divisors (see below), whose sum is σ = 2480437080. Its totient is φ = 417756672.

The previous prime is 1073404039. The next prime is 1073404061. The reversal of 1073404040 is 404043701.

It can be written as a sum of positive squares in 4 ways, for example, as 1016461924 + 56942116 = 31882^2 + 7546^2 .

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1073403997 and 1073404015.

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, 361157 + ... + 364116.

Almost surely, 2^1073404040 is an apocalyptic number.

1073404040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1073404040 is an abundant number, since it is smaller than the sum of its proper divisors (1407033040).

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

1073404040 is a wasteful number, since it uses less digits than its factorization.

1073404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725321 (or 725317 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1073404040 is about 32762.8454197739. The cubic root of 1073404040 is about 1023.8926100963.

Adding to 1073404040 its reverse (404043701), we get a palindrome (1477447741).

The spelling of 1073404040 in words is "one billion, seventy-three million, four hundred four thousand, forty".