144769072 has 40 divisors (see below), whose sum is σ = 322641056. Its totient is φ = 61641216.

The previous prime is 144769069. The next prime is 144769081. The reversal of 144769072 is 270967441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13468 + ... + 21700.

Almost surely, 2^144769072 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 144769072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161320528).

144769072 is an abundant number, since it is smaller than the sum of its proper divisors (177871984).

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

144769072 is a wasteful number, since it uses less digits than its factorization.

144769072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405 (or 8399 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 144769072 is about 12032.0019946807. The cubic root of 144769072 is about 525.0797423847.

The spelling of 144769072 in words is "one hundred forty-four million, seven hundred sixty-nine thousand, seventy-two".