81882302 has 8 divisors (see below), whose sum is σ = 130048416. Its totient is φ = 38532832.

The previous prime is 81882293. The next prime is 81882329. The reversal of 81882302 is 20328818.

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

It is a super-2 number, since 2×81882302² = 13409422761638408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204118 + ... + 1204185.

It is an arithmetic number, because the mean of its divisors is an integer number (16256052).

Almost surely, 2^81882302 is an apocalyptic number.

81882302 is a deficient number, since it is larger than the sum of its proper divisors (48166114).

81882302 is a wasteful number, since it uses less digits than its factorization.

81882302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408322.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 81882302 is about 9048.8840195905. The cubic root of 81882302 is about 434.2401885668.

The spelling of 81882302 in words is "eighty-one million, eight hundred eighty-two thousand, three hundred two".