82052490 has 32 divisors (see below), whose sum is σ = 212075136. Its totient is φ = 20197440.

The previous prime is 82052473. The next prime is 82052491. The reversal of 82052490 is 9425028.

It is a super-2 number, since 2×82052490² = 13465222230400200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82052491) 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, 104806 + ... + 105585.

It is an arithmetic number, because the mean of its divisors is an integer number (6627348).

Almost surely, 2^82052490 is an apocalyptic number.

82052490 is an abundant number, since it is smaller than the sum of its proper divisors (130022646).

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

82052490 is a wasteful number, since it uses less digits than its factorization.

82052490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210414.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 82052490 is about 9058.2829498752. The cubic root of 82052490 is about 434.5408287363.

The spelling of 82052490 in words is "eighty-two million, fifty-two thousand, four hundred ninety".