1440846672 has 80 divisors (see below), whose sum is σ = 3864008640. Its totient is φ = 462099456.

The previous prime is 1440846653. The next prime is 1440846727. The reversal of 1440846672 is 2766480441.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 434043 + ... + 437349.

It is an arithmetic number, because the mean of its divisors is an integer number (48300108).

Almost surely, 2^1440846672 is an apocalyptic number.

1440846672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440846672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932004320).

1440846672 is an abundant number, since it is smaller than the sum of its proper divisors (2423161968).

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

1440846672 is a wasteful number, since it uses less digits than its factorization.

1440846672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 1440846672 is about 37958.4861658101. The cubic root of 1440846672 is about 1129.4645104222.

The spelling of 1440846672 in words is "one billion, four hundred forty million, eight hundred forty-six thousand, six hundred seventy-two".