82033940 has 24 divisors (see below), whose sum is σ = 172566240. Its totient is φ = 32757408.

The previous prime is 82033937. The next prime is 82033943. The reversal of 82033940 is 4933028.

It is an interprime number because it is at equal distance from previous prime (82033937) and next prime (82033943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82033943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9671 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (7190260).

Almost surely, 2^82033940 is an apocalyptic number.

It is an amenable number.

82033940 is an abundant number, since it is smaller than the sum of its proper divisors (90532300).

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

82033940 is a wasteful number, since it uses less digits than its factorization.

82033940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031 (or 7029 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 82033940 is about 9057.2589672594. The cubic root of 82033940 is about 434.5080800251.

Adding to 82033940 its reverse (4933028), we get a palindrome (86966968).

The spelling of 82033940 in words is "eighty-two million, thirty-three thousand, nine hundred forty".