1440145514 has 16 divisors (see below), whose sum is σ = 2326060800. Its totient is φ = 666227904.

The previous prime is 1440145477. The next prime is 1440145559. The reversal of 1440145514 is 4155410441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356954 + ... + 360965.

It is an arithmetic number, because the mean of its divisors is an integer number (145378800).

Almost surely, 2^1440145514 is an apocalyptic number.

1440145514 is a deficient number, since it is larger than the sum of its proper divisors (885915286).

1440145514 is a wasteful number, since it uses less digits than its factorization.

1440145514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717997.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 1440145514 is about 37949.2491888838. The cubic root of 1440145514 is about 1129.2812705752.

Adding to 1440145514 its reverse (4155410441), we get a palindrome (5595555955).

The spelling of 1440145514 in words is "one billion, four hundred forty million, one hundred forty-five thousand, five hundred fourteen".