1404442020 has 48 divisors (see below), whose sum is σ = 3934502208. Its totient is φ = 374321280.

The previous prime is 1404442009. The next prime is 1404442021. The reversal of 1404442020 is 202444041.

It is not an unprimeable number, because it can be changed into a prime (1404442021) 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, 136455 + ... + 146385.

It is an arithmetic number, because the mean of its divisors is an integer number (81968796).

Almost surely, 2^1404442020 is an apocalyptic number.

1404442020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404442020 is an abundant number, since it is smaller than the sum of its proper divisors (2530060188).

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

1404442020 is a wasteful number, since it uses less digits than its factorization.

1404442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12300 (or 12298 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1404442020 is about 37475.8858467682. The cubic root of 1404442020 is about 1119.8708450133.

Adding to 1404442020 its reverse (202444041), we get a palindrome (1606886061).

The spelling of 1404442020 in words is "one billion, four hundred four million, four hundred forty-two thousand, twenty".