1440020102 has 4 divisors (see below), whose sum is σ = 2160030156. Its totient is φ = 720010050.

The previous prime is 1440020093. The next prime is 1440020111. The reversal of 1440020102 is 2010200441.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1440020093) and next prime (1440020111).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360005024 + ... + 360005027.

It is an arithmetic number, because the mean of its divisors is an integer number (540007539).

Almost surely, 2^1440020102 is an apocalyptic number.

1440020102 is a deficient number, since it is larger than the sum of its proper divisors (720010054).

1440020102 is an equidigital number, since it uses as much as digits as its factorization.

1440020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720010053.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1440020102 is about 37947.5967882025. The cubic root of 1440020102 is about 1129.2484892734.

Adding to 1440020102 its reverse (2010200441), we get a palindrome (3450220543).

The spelling of 1440020102 in words is "one billion, four hundred forty million, twenty thousand, one hundred two".