82494420 has 48 divisors (see below), whose sum is σ = 234443328. Its totient is φ = 21669120.

The previous prime is 82494397. The next prime is 82494437. The reversal of 82494420 is 2449428.

It is a super-2 number, since 2×82494420² = 13610658662272800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6241 + ... + 14280.

It is an arithmetic number, because the mean of its divisors is an integer number (4884236).

Almost surely, 2^82494420 is an apocalyptic number.

It is an amenable number.

82494420 is an abundant number, since it is smaller than the sum of its proper divisors (151948908).

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

82494420 is a wasteful number, since it uses less digits than its factorization.

82494420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20600 (or 20598 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 82494420 is about 9082.6438882079. The cubic root of 82494420 is about 435.3195696385.

The spelling of 82494420 in words is "eighty-two million, four hundred ninety-four thousand, four hundred twenty".