144406746 has 32 divisors (see below), whose sum is σ = 350078400. Its totient is φ = 43759440.

The previous prime is 144406741. The next prime is 144406813. The reversal of 144406746 is 647604441.

It is a self number, because there is not a number n which added to its sum of digits gives 144406746.

It is not an unprimeable number, because it can be changed into a prime (144406741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120961 + ... + 122148.

It is an arithmetic number, because the mean of its divisors is an integer number (10939950).

Almost surely, 2^144406746 is an apocalyptic number.

144406746 is an abundant number, since it is smaller than the sum of its proper divisors (205671654).

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

144406746 is a wasteful number, since it uses less digits than its factorization.

144406746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243131 (or 243125 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 144406746 is about 12016.9357991129. The cubic root of 144406746 is about 524.6413223558.

The spelling of 144406746 in words is "one hundred forty-four million, four hundred six thousand, seven hundred forty-six".