1000373421 has 4 divisors (see below), whose sum is σ = 1333831232. Its totient is φ = 666915612.

The previous prime is 1000373419. The next prime is 1000373443. The reversal of 1000373421 is 1243730001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1000373421 - 2¹ = 1000373419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000373411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166728901 + ... + 166728906.

It is an arithmetic number, because the mean of its divisors is an integer number (333457808).

Almost surely, 2^1000373421 is an apocalyptic number.

It is an amenable number.

1000373421 is a deficient number, since it is larger than the sum of its proper divisors (333457811).

1000373421 is an equidigital number, since it uses as much as digits as its factorization.

1000373421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333457810.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1000373421 is about 31628.6803550196. The cubic root of 1000373421 is about 1000.1244581762.

The spelling of 1000373421 in words is "one billion, three hundred seventy-three thousand, four hundred twenty-one".