1446023440 has 20 divisors (see below), whose sum is σ = 3362004684. Its totient is φ = 578409344.

The previous prime is 1446023399. The next prime is 1446023459. The reversal of 1446023440 is 443206441.

It can be written as a sum of positive squares in 2 ways, for example, as 244985104 + 1201038336 = 15652^2 + 34656^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1446023399 and 1446023408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9037567 + ... + 9037726.

Almost surely, 2^1446023440 is an apocalyptic number.

1446023440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1446023440 is an abundant number, since it is smaller than the sum of its proper divisors (1915981244).

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

1446023440 is a wasteful number, since it uses less digits than its factorization.

1446023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18075306 (or 18075300 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1446023440 is about 38026.6148901003. The cubic root of 1446023440 is about 1130.8155649390.

Adding to 1446023440 its reverse (443206441), we get a palindrome (1889229881).

The spelling of 1446023440 in words is "one billion, four hundred forty-six million, twenty-three thousand, four hundred forty".