72244834 has 4 divisors (see below), whose sum is σ = 108367254. Its totient is φ = 36122416.

The previous prime is 72244813. The next prime is 72244841. The reversal of 72244834 is 43844227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71351809 + 893025 = 8447^2 + 945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72244834.

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, 18061207 + ... + 18061210.

Almost surely, 2^72244834 is an apocalyptic number.

72244834 is a deficient number, since it is larger than the sum of its proper divisors (36122420).

72244834 is a wasteful number, since it uses less digits than its factorization.

72244834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36122419.

The product of its digits is 43008, while the sum is 34.

The square root of 72244834 is about 8499.6961122148. The cubic root of 72244834 is about 416.4877822697.

The spelling of 72244834 in words is "seventy-two million, two hundred forty-four thousand, eight hundred thirty-four".