1440053156 has 24 divisors (see below), whose sum is σ = 2534453376. Its totient is φ = 715936320.

The previous prime is 1440053117. The next prime is 1440053171. The reversal of 1440053156 is 6513500441.

It is a happy number.

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, 604640 + ... + 607016.

It is an arithmetic number, because the mean of its divisors is an integer number (105602224).

Almost surely, 2^1440053156 is an apocalyptic number.

It is an amenable number.

1440053156 is a deficient number, since it is larger than the sum of its proper divisors (1094400220).

1440053156 is a wasteful number, since it uses less digits than its factorization.

1440053156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179 (or 3177 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1440053156 is about 37948.0323073542. The cubic root of 1440053156 is about 1129.2571294060.

Adding to 1440053156 its reverse (6513500441), we get a palindrome (7953553597).

The spelling of 1440053156 in words is "one billion, four hundred forty million, fifty-three thousand, one hundred fifty-six".