1040353521 has 8 divisors (see below), whose sum is σ = 1431884544. Its totient is φ = 671195760.

The previous prime is 1040353519. The next prime is 1040353537. The reversal of 1040353521 is 1253530401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1040353521 - 2¹ = 1040353519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040353491 and 1040353500.

It is not an unprimeable number, because it can be changed into a prime (1040353921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5593206 + ... + 5593391.

It is an arithmetic number, because the mean of its divisors is an integer number (178985568).

Almost surely, 2^1040353521 is an apocalyptic number.

It is an amenable number.

1040353521 is a deficient number, since it is larger than the sum of its proper divisors (391531023).

1040353521 is a wasteful number, since it uses less digits than its factorization.

1040353521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11186631.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1040353521 is about 32254.5116379089. The cubic root of 1040353521 is about 1013.2741898937.

Adding to 1040353521 its reverse (1253530401), we get a palindrome (2293883922).

The spelling of 1040353521 in words is "one billion, forty million, three hundred fifty-three thousand, five hundred twenty-one".