82231940 has 24 divisors (see below), whose sum is σ = 197356992. Its totient is φ = 28193760.

The previous prime is 82231931. The next prime is 82231951. The reversal of 82231940 is 4913228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293546 + ... + 293825.

It is an arithmetic number, because the mean of its divisors is an integer number (8223208).

Almost surely, 2^82231940 is an apocalyptic number.

It is an amenable number.

82231940 is an abundant number, since it is smaller than the sum of its proper divisors (115125052).

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

82231940 is a wasteful number, since it uses less digits than its factorization.

82231940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587387 (or 587385 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 82231940 is about 9068.1828389154. The cubic root of 82231940 is about 434.8573804708.

The spelling of 82231940 in words is "eighty-two million, two hundred thirty-one thousand, nine hundred forty".