1443220002 has 48 divisors (see below), whose sum is σ = 3670285632. Its totient is φ = 401202720.

The previous prime is 1443219991. The next prime is 1443220027. The reversal of 1443220002 is 2000223441.

1443220002 is a `hidden beast` number, since 1 + 443 + 220 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150124 + ... + 159447.

It is an arithmetic number, because the mean of its divisors is an integer number (76464284).

Almost surely, 2^1443220002 is an apocalyptic number.

1443220002 is an abundant number, since it is smaller than the sum of its proper divisors (2227065630).

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

1443220002 is a wasteful number, since it uses less digits than its factorization.

1443220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309623 (or 309620 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1443220002 is about 37989.7354821010. The cubic root of 1443220002 is about 1130.0843130240.

Adding to 1443220002 its reverse (2000223441), we get a palindrome (3443443443).

It can be divided in two parts, 1443 and 220002, that added together give a triangular number (221445 = T₆₆₅).

The spelling of 1443220002 in words is "one billion, four hundred forty-three million, two hundred twenty thousand, two".