72343588 has 6 divisors (see below), whose sum is σ = 126601286. Its totient is φ = 36171792.

The previous prime is 72343549. The next prime is 72343589. The reversal of 72343588 is 88534327.

It can be written as a sum of positive squares in only one way, i.e., 37675044 + 34668544 = 6138^2 + 5888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72343588.

It is not an unprimeable number, because it can be changed into a prime (72343589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9042945 + ... + 9042952.

Almost surely, 2^72343588 is an apocalyptic number.

It is an amenable number.

72343588 is a deficient number, since it is larger than the sum of its proper divisors (54257698).

72343588 is a wasteful number, since it uses less digits than its factorization.

72343588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18085901 (or 18085899 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 72343588 is about 8505.5033948615. The cubic root of 72343588 is about 416.6774664579.

The spelling of 72343588 in words is "seventy-two million, three hundred forty-three thousand, five hundred eighty-eight".