82023642 has 24 divisors (see below), whose sum is σ = 178020180. Its totient is φ = 27294720.

The previous prime is 82023631. The next prime is 82023677. The reversal of 82023642 is 24632028.

It can be written as a sum of positive squares in 2 ways, for example, as 81920601 + 103041 = 9051^2 + 321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7984 + ... + 15092.

Almost surely, 2^82023642 is an apocalyptic number.

82023642 is an abundant number, since it is smaller than the sum of its proper divisors (95996538).

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

82023642 is a wasteful number, since it uses less digits than its factorization.

82023642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 7755 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 82023642 is about 9056.6904551276. The cubic root of 82023642 is about 434.4898975044.

The spelling of 82023642 in words is "eighty-two million, twenty-three thousand, six hundred forty-two".