1044102421 has 4 divisors (see below), whose sum is σ = 1099055200. Its totient is φ = 989149644.

The previous prime is 1044102407. The next prime is 1044102439. The reversal of 1044102421 is 1242014401.

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 a cyclic number.

It is not a de Polignac number, because 1044102421 - 2¹⁷ = 1043971349 is a prime.

It is a super-2 number, since 2×1044102421² = 2180299731076122482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 54952759 = 1044102421 / (1 + 0 + 4 + 4 + 1 + 0 + 2 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27476361 + ... + 27476398.

It is an arithmetic number, because the mean of its divisors is an integer number (274763800).

Almost surely, 2^1044102421 is an apocalyptic number.

It is an amenable number.

1044102421 is a deficient number, since it is larger than the sum of its proper divisors (54952779).

1044102421 is an equidigital number, since it uses as much as digits as its factorization.

1044102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54952778.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1044102421 is about 32312.5737291228. The cubic root of 1044102421 is about 1014.4898375350.

Adding to 1044102421 its reverse (1242014401), we get a palindrome (2286116822).

The spelling of 1044102421 in words is "one billion, forty-four million, one hundred two thousand, four hundred twenty-one".