144806772 has 48 divisors (see below), whose sum is σ = 373814784. Its totient is φ = 43260000.

The previous prime is 144806749. The next prime is 144806801. The reversal of 144806772 is 277608441.

It is a self number, because there is not a number n which added to its sum of digits gives 144806772.

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, 1647 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (7787808).

Almost surely, 2^144806772 is an apocalyptic number.

144806772 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 144806772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186907392).

144806772 is an abundant number, since it is smaller than the sum of its proper divisors (229008012).

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

144806772 is a wasteful number, since it uses less digits than its factorization.

144806772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540 (or 15538 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 144806772 is about 12033.5685480243. The cubic root of 144806772 is about 525.1253179299.

The spelling of 144806772 in words is "one hundred forty-four million, eight hundred six thousand, seven hundred seventy-two".