1040203421 has 8 divisors (see below), whose sum is σ = 1047480000. Its totient is φ = 1032939648.

The previous prime is 1040203403. The next prime is 1040203433. The reversal of 1040203421 is 1243020401.

1040203421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040203421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1040203421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040203441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206090 + ... + 211076.

It is an arithmetic number, because the mean of its divisors is an integer number (130935000).

Almost surely, 2^1040203421 is an apocalyptic number.

It is an amenable number.

1040203421 is a deficient number, since it is larger than the sum of its proper divisors (7276579).

1040203421 is a wasteful number, since it uses less digits than its factorization.

1040203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1040203421 is about 32252.1847477035. The cubic root of 1040203421 is about 1013.2254565327.

Adding to 1040203421 its reverse (1243020401), we get a palindrome (2283223822).

The spelling of 1040203421 in words is "one billion, forty million, two hundred three thousand, four hundred twenty-one".