1440187214 has 16 divisors (see below), whose sum is σ = 2177139600. Its totient is φ = 714484800.

The previous prime is 1440187171. The next prime is 1440187237. The reversal of 1440187214 is 4127810441.

It is a super-2 number, since 2×1440187214² = 4148278422738163592, 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, 353489 + ... + 357539.

It is an arithmetic number, because the mean of its divisors is an integer number (136071225).

Almost surely, 2^1440187214 is an apocalyptic number.

1440187214 is a deficient number, since it is larger than the sum of its proper divisors (736952386).

1440187214 is a wasteful number, since it uses less digits than its factorization.

1440187214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1440187214 is about 37949.7986028912. The cubic root of 1440187214 is about 1129.2921700697.

Adding to 1440187214 its reverse (4127810441), we get a palindrome (5567997655).

The spelling of 1440187214 in words is "one billion, four hundred forty million, one hundred eighty-seven thousand, two hundred fourteen".