144705474 has 16 divisors (see below), whose sum is σ = 321567840. Its totient is φ = 48235140.

The previous prime is 144705469. The next prime is 144705499. The reversal of 144705474 is 474507441.

It is a happy number.

144705474 is a `hidden beast` number, since 1 + 44 + 70 + 547 + 4 = 666.

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, 1339812 + ... + 1339919.

It is an arithmetic number, because the mean of its divisors is an integer number (20097990).

Almost surely, 2^144705474 is an apocalyptic number.

144705474 is an abundant number, since it is smaller than the sum of its proper divisors (176862366).

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

144705474 is a wasteful number, since it uses less digits than its factorization.

144705474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679742 (or 2679736 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 144705474 is about 12029.3588357817. The cubic root of 144705474 is about 525.0028408010.

The spelling of 144705474 in words is "one hundred forty-four million, seven hundred five thousand, four hundred seventy-four".