144332920 has 16 divisors (see below), whose sum is σ = 324749160. Its totient is φ = 57733152.

The previous prime is 144332917. The next prime is 144332957. The reversal of 144332920 is 29233441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804122 + ... + 1804201.

Almost surely, 2^144332920 is an apocalyptic number.

144332920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144332920 is an abundant number, since it is smaller than the sum of its proper divisors (180416240).

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

144332920 is a wasteful number, since it uses less digits than its factorization.

144332920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608334 (or 3608330 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 144332920 is about 12013.8636582908. The cubic root of 144332920 is about 524.5519018505.

The spelling of 144332920 in words is "one hundred forty-four million, three hundred thirty-two thousand, nine hundred twenty".