81962352 has 120 divisors (see below), whose sum is σ = 250021200. Its totient is φ = 24966144.

The previous prime is 81962351. The next prime is 81962369. The reversal of 81962352 is 25326918.

81962352 = T₂₃₆₃ + T₂₃₆₄ + ... + T₂₃₉₁.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81962351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78828 + ... + 79860.

It is an arithmetic number, because the mean of its divisors is an integer number (2083510).

Almost surely, 2^81962352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81962352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125010600).

81962352 is an abundant number, since it is smaller than the sum of its proper divisors (168058848).

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

81962352 is a wasteful number, since it uses less digits than its factorization.

81962352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1086 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 81962352 is about 9053.3061364344. The cubic root of 81962352 is about 434.3816501716.

The spelling of 81962352 in words is "eighty-one million, nine hundred sixty-two thousand, three hundred fifty-two".