2031404421 has 8 divisors (see below), whose sum is σ = 2709318304. Its totient is φ = 1353880080.

The previous prime is 2031404411. The next prime is 2031404429. The reversal of 2031404421 is 1244041302.

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

It is not a de Polignac number, because 2031404421 - 2¹⁹ = 2030880133 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 (2031404429) 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, 84991 + ... + 106236.

It is an arithmetic number, because the mean of its divisors is an integer number (338664788).

Almost surely, 2^2031404421 is an apocalyptic number.

It is an amenable number.

2031404421 is a deficient number, since it is larger than the sum of its proper divisors (677913883).

2031404421 is a wasteful number, since it uses less digits than its factorization.

2031404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194771.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2031404421 is about 45071.1040579216. The cubic root of 2031404421 is about 1266.4813469032.

Adding to 2031404421 its reverse (1244041302), we get a palindrome (3275445723).

The spelling of 2031404421 in words is "two billion, thirty-one million, four hundred four thousand, four hundred twenty-one".