144893772 has 60 divisors (see below), whose sum is σ = 398733720. Its totient is φ = 45753984.

The previous prime is 144893761. The next prime is 144893807. The reversal of 144893772 is 277398441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5613 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (6645562).

Almost surely, 2^144893772 is an apocalyptic number.

144893772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144893772 is an abundant number, since it is smaller than the sum of its proper divisors (253839948).

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

144893772 is a wasteful number, since it uses less digits than its factorization.

144893772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23572 (or 23561 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 144893772 is about 12037.1828930194. The cubic root of 144893772 is about 525.2304620833.

The spelling of 144893772 in words is "one hundred forty-four million, eight hundred ninety-three thousand, seven hundred seventy-two".