1000326421 has 8 divisors (see below), whose sum is σ = 1063200320. Its totient is φ = 938475072.

The previous prime is 1000326391. The next prime is 1000326443. The reversal of 1000326421 is 1246230001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000326421 - 2⁵ = 1000326389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000326491) 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, 253620 + ... + 257533.

It is an arithmetic number, because the mean of its divisors is an integer number (132900040).

Almost surely, 2^1000326421 is an apocalyptic number.

It is an amenable number.

1000326421 is a deficient number, since it is larger than the sum of its proper divisors (62873899).

1000326421 is a wasteful number, since it uses less digits than its factorization.

1000326421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511275.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1000326421 is about 31627.9373497546. The cubic root of 1000326421 is about 1000.1087951632.

Adding to 1000326421 its reverse (1246230001), we get a palindrome (2246556422).

The spelling of 1000326421 in words is "one billion, three hundred twenty-six thousand, four hundred twenty-one".