1040325021 has 12 divisors (see below), whose sum is σ = 1539343260. Its totient is φ = 676633920.

The previous prime is 1040325019. The next prime is 1040325023. The reversal of 1040325021 is 1205230401.

1040325021 is a `hidden beast` number, since 10 + 403 + 250 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1040325019) and next prime (1040325023).

It can be written as a sum of positive squares in 2 ways, for example, as 384708996 + 655616025 = 19614^2 + 25605^2 .

It is not a de Polignac number, because 1040325021 - 2¹ = 1040325019 is a prime.

It is a super-2 number, since 2×1040325021² = 2164552298637300882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1040324985 and 1040325003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040325023) 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, 1409286 + ... + 1410023.

It is an arithmetic number, because the mean of its divisors is an integer number (128278605).

Almost surely, 2^1040325021 is an apocalyptic number.

It is an amenable number.

1040325021 is a deficient number, since it is larger than the sum of its proper divisors (499018239).

1040325021 is a wasteful number, since it uses less digits than its factorization.

1040325021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819356 (or 2819353 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1040325021 is about 32254.0698362238. The cubic root of 1040325021 is about 1013.2649370844.

Adding to 1040325021 its reverse (1205230401), we get a palindrome (2245555422).

The spelling of 1040325021 in words is "one billion, forty million, three hundred twenty-five thousand, twenty-one".