144163632 has 80 divisors (see below), whose sum is σ = 394617600. Its totient is φ = 45255936.

The previous prime is 144163619. The next prime is 144163639. The reversal of 144163632 is 236361441.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 144163632.

It is not an unprimeable number, because it can be changed into a prime (144163639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72994 + ... + 74942.

It is an arithmetic number, because the mean of its divisors is an integer number (4932720).

Almost surely, 2^144163632 is an apocalyptic number.

144163632 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 144163632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197308800).

144163632 is an abundant number, since it is smaller than the sum of its proper divisors (250453968).

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

144163632 is a wasteful number, since it uses less digits than its factorization.

144163632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2044 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 144163632 is about 12006.8160642195. The cubic root of 144163632 is about 524.3467394086.

The spelling of 144163632 in words is "one hundred forty-four million, one hundred sixty-three thousand, six hundred thirty-two".