81360462 has 32 divisors (see below), whose sum is σ = 165798144. Its totient is φ = 26611200.

The previous prime is 81360439. The next prime is 81360463. The reversal of 81360462 is 26406318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81360463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140718 + ... + 141294.

It is an arithmetic number, because the mean of its divisors is an integer number (5181192).

Almost surely, 2^81360462 is an apocalyptic number.

81360462 is an abundant number, since it is smaller than the sum of its proper divisors (84437682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81360462 is a wasteful number, since it uses less digits than its factorization.

81360462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 81360462 is about 9020.0034368064. The cubic root of 81360462 is about 433.3157437962.

The spelling of 81360462 in words is "eighty-one million, three hundred sixty thousand, four hundred sixty-two".