72543338 has 8 divisors (see below), whose sum is σ = 124360032. Its totient is φ = 31089996.

The previous prime is 72543323. The next prime is 72543353. The reversal of 72543338 is 83334527.

It is an interprime number because it is at equal distance from previous prime (72543323) and next prime (72543353).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72543298 and 72543307.

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 in 3 ways as a sum of consecutive naturals, for example, 2590820 + ... + 2590847.

It is an arithmetic number, because the mean of its divisors is an integer number (15545004).

Almost surely, 2^72543338 is an apocalyptic number.

72543338 is a deficient number, since it is larger than the sum of its proper divisors (51816694).

72543338 is a wasteful number, since it uses less digits than its factorization.

72543338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181676.

The product of its digits is 60480, while the sum is 35.

The square root of 72543338 is about 8517.2376977515. The cubic root of 72543338 is about 417.0606141533.

The spelling of 72543338 in words is "seventy-two million, five hundred forty-three thousand, three hundred thirty-eight".