73981382 has 16 divisors (see below), whose sum is σ = 117683280. Its totient is φ = 34760448.

The previous prime is 73981379. The next prime is 73981403. The reversal of 73981382 is 28318937.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27869 + ... + 30407.

It is an arithmetic number, because the mean of its divisors is an integer number (7355205).

Almost surely, 2^73981382 is an apocalyptic number.

73981382 is a deficient number, since it is larger than the sum of its proper divisors (43701898).

73981382 is a wasteful number, since it uses less digits than its factorization.

73981382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its digits is 72576, while the sum is 41.

The square root of 73981382 is about 8601.2430496993. The cubic root of 73981382 is about 419.7984331357.

The spelling of 73981382 in words is "seventy-three million, nine hundred eighty-one thousand, three hundred eighty-two".