144840372 has 24 divisors (see below), whose sum is σ = 346204992. Its totient is φ = 47102400.

The previous prime is 144840347. The next prime is 144840379. The reversal of 144840372 is 273048441.

It is a super-2 number, since 2×144840372² = 41957466722196768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144840379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146704 + ... + 147687.

It is an arithmetic number, because the mean of its divisors is an integer number (14425208).

Almost surely, 2^144840372 is an apocalyptic number.

144840372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144840372 is an abundant number, since it is smaller than the sum of its proper divisors (201364620).

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

144840372 is a wasteful number, since it uses less digits than its factorization.

144840372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294439 (or 294437 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 144840372 is about 12034.9645616429. The cubic root of 144840372 is about 525.1659303174.

The spelling of 144840372 in words is "one hundred forty-four million, eight hundred forty thousand, three hundred seventy-two".