1040413221 has 16 divisors (see below), whose sum is σ = 1556617920. Its totient is φ = 686739600.

The previous prime is 1040413207. The next prime is 1040413237. The reversal of 1040413221 is 1223140401.

It is not a de Polignac number, because 1040413221 - 2⁷ = 1040413093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040413194 and 1040413203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040418221) 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, 188035 + ... + 193488.

It is an arithmetic number, because the mean of its divisors is an integer number (97288620).

Almost surely, 2^1040413221 is an apocalyptic number.

It is an amenable number.

1040413221 is a deficient number, since it is larger than the sum of its proper divisors (516204699).

1040413221 is a wasteful number, since it uses less digits than its factorization.

1040413221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381633 (or 381627 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1040413221 is about 32255.4370765612. The cubic root of 1040413221 is about 1013.2935715465.

Adding to 1040413221 its reverse (1223140401), we get a palindrome (2263553622).

The spelling of 1040413221 in words is "one billion, forty million, four hundred thirteen thousand, two hundred twenty-one".