1440402214 has 16 divisors (see below), whose sum is σ = 2297700000. Its totient is φ = 674872704.

The previous prime is 1440402203. The next prime is 1440402233. The reversal of 1440402214 is 4122040441.

It is a super-2 number, since 2×1440402214² = 4149517076192203592, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 84714 + ... + 100285.

It is an arithmetic number, because the mean of its divisors is an integer number (143606250).

Almost surely, 2^1440402214 is an apocalyptic number.

1440402214 is a deficient number, since it is larger than the sum of its proper divisors (857297786).

1440402214 is a wasteful number, since it uses less digits than its factorization.

1440402214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185247.

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

The square root of 1440402214 is about 37952.6311867833. The cubic root of 1440402214 is about 1129.3483631658.

Adding to 1440402214 its reverse (4122040441), we get a palindrome (5562442655).

The spelling of 1440402214 in words is "one billion, four hundred forty million, four hundred two thousand, two hundred fourteen".