144356644 has 6 divisors (see below), whose sum is σ = 252624134. Its totient is φ = 72178320.

The previous prime is 144356617. The next prime is 144356651. The reversal of 144356644 is 446653441.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 5116644 = 11800^2 + 2262^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18044577 + ... + 18044584.

Almost surely, 2^144356644 is an apocalyptic number.

It is an amenable number.

144356644 is a deficient number, since it is larger than the sum of its proper divisors (108267490).

144356644 is a wasteful number, since it uses less digits than its factorization.

144356644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36089165 (or 36089163 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 144356644 is about 12014.8509770201. The cubic root of 144356644 is about 524.5806404722.

The spelling of 144356644 in words is "one hundred forty-four million, three hundred fifty-six thousand, six hundred forty-four".