1044421420 has 48 divisors (see below), whose sum is σ = 2513952000. Its totient is φ = 357038784.

The previous prime is 1044421409. The next prime is 1044421429. The reversal of 1044421420 is 241244401.

It is a super-2 number, since 2×1044421420² = 2181632205109632800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1044421391 and 1044421400.

It is not an unprimeable number, because it can be changed into a prime (1044421429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37831 + ... + 59329.

It is an arithmetic number, because the mean of its divisors is an integer number (52374000).

Almost surely, 2^1044421420 is an apocalyptic number.

1044421420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044421420 is an abundant number, since it is smaller than the sum of its proper divisors (1469530580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1044421420 is a wasteful number, since it uses less digits than its factorization.

1044421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21862 (or 21860 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1044421420 is about 32317.5094956279. The cubic root of 1044421420 is about 1014.5931442237.

Adding to 1044421420 its reverse (241244401), we get a palindrome (1285665821).

The spelling of 1044421420 in words is "one billion, forty-four million, four hundred twenty-one thousand, four hundred twenty".