1440146120 has 64 divisors (see below), whose sum is σ = 3706560000. Its totient is φ = 493320960.

The previous prime is 1440146101. The next prime is 1440146131. The reversal of 1440146120 is 216410441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522506 + ... + 525254.

It is an arithmetic number, because the mean of its divisors is an integer number (57915000).

Almost surely, 2^1440146120 is an apocalyptic number.

1440146120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440146120 is an abundant number, since it is smaller than the sum of its proper divisors (2266413880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440146120 is a wasteful number, since it uses less digits than its factorization.

1440146120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1440146120 is about 37949.2571732307. The cubic root of 1440146120 is about 1129.2814289722.

Adding to 1440146120 its reverse (216410441), we get a palindrome (1656556561).

The spelling of 1440146120 in words is "one billion, four hundred forty million, one hundred forty-six thousand, one hundred twenty".