144872428 has 6 divisors (see below), whose sum is σ = 253526756. Its totient is φ = 72436212.

The previous prime is 144872417. The next prime is 144872443. The reversal of 144872428 is 824278441.

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 as a sum of consecutive naturals, namely, 18109050 + ... + 18109057.

Almost surely, 2^144872428 is an apocalyptic number.

It is an amenable number.

144872428 is a deficient number, since it is larger than the sum of its proper divisors (108654328).

144872428 is a wasteful number, since it uses less digits than its factorization.

144872428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36218111 (or 36218109 counting only the distinct ones).

The product of its digits is 114688, while the sum is 40.

The square root of 144872428 is about 12036.2962741867. The cubic root of 144872428 is about 525.2046706148.

The spelling of 144872428 in words is "one hundred forty-four million, eight hundred seventy-two thousand, four hundred twenty-eight".