144773904 has 120 divisors (see below), whose sum is σ = 435427488. Its totient is φ = 40965120.

The previous prime is 144773903. The next prime is 144773929. The reversal of 144773904 is 409377441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144773903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1139889 + ... + 1140015.

Almost surely, 2^144773904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144773904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217713744).

144773904 is an abundant number, since it is smaller than the sum of its proper divisors (290653584).

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

144773904 is a wasteful number, since it uses less digits than its factorization.

144773904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 144773904 is about 12032.2027908442. The cubic root of 144773904 is about 525.0855842334.

It can be divided in two parts, 14477 and 3904, that added together give a palindrome (18381).

The spelling of 144773904 in words is "one hundred forty-four million, seven hundred seventy-three thousand, nine hundred four".