144572436 has 36 divisors (see below), whose sum is σ = 366830100. Its totient is φ = 48008448.

The previous prime is 144572429. The next prime is 144572443. The reversal of 144572436 is 634275441.

144572436 is a `hidden beast` number, since 1 + 44 + 572 + 43 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (144572429) and next prime (144572443).

It can be written as a sum of positive squares in 2 ways, for example, as 63680400 + 80892036 = 7980^2 + 8994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 144572436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2220 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (10189725).

Almost surely, 2^144572436 is an apocalyptic number.

It is an amenable number.

144572436 is an abundant number, since it is smaller than the sum of its proper divisors (222257664).

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

144572436 is a wasteful number, since it uses less digits than its factorization.

144572436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15208 (or 15203 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 144572436 is about 12023.8278430789. The cubic root of 144572436 is about 524.8419006938.

The spelling of 144572436 in words is "one hundred forty-four million, five hundred seventy-two thousand, four hundred thirty-six".