144232920 has 128 divisors (see below), whose sum is σ = 517809600. Its totient is φ = 35500032.

The previous prime is 144232909. The next prime is 144232937. The reversal of 144232920 is 29232441.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8904 + ... + 19176.

Almost surely, 2^144232920 is an apocalyptic number.

144232920 is a gapful number since it is divisible by the number (10) 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 144232920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258904800).

144232920 is an abundant number, since it is smaller than the sum of its proper divisors (373576680).

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

144232920 is a wasteful number, since it uses less digits than its factorization.

144232920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306 (or 10296 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 144232920 is about 12009.7010787113. The cubic root of 144232920 is about 524.4307298886.

The spelling of 144232920 in words is "one hundred forty-four million, two hundred thirty-two thousand, nine hundred twenty".