72049382 has 8 divisors (see below), whose sum is σ = 110710152. Its totient is φ = 35146000.

The previous prime is 72049379. The next prime is 72049391. The reversal of 72049382 is 28394027.

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

It is a super-2 number, since 2×72049382² = 10382226893163848, which contains 22 as substring.

It is a congruent number.

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, 439244 + ... + 439407.

It is an arithmetic number, because the mean of its divisors is an integer number (13838769).

Almost surely, 2^72049382 is an apocalyptic number.

72049382 is a deficient number, since it is larger than the sum of its proper divisors (38660770).

72049382 is a wasteful number, since it uses less digits than its factorization.

72049382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878694.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 72049382 is about 8488.1907377250. The cubic root of 72049382 is about 416.1118527814. Note that the first 3 decimals are identical.

The spelling of 72049382 in words is "seventy-two million, forty-nine thousand, three hundred eighty-two".