82642412 has 6 divisors (see below), whose sum is σ = 144624228. Its totient is φ = 41321204.

The previous prime is 82642411. The next prime is 82642459. The reversal of 82642412 is 21424628.

It is a super-2 number, since 2×82642412² = 13659536522355488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82642411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10330298 + ... + 10330305.

It is an arithmetic number, because the mean of its divisors is an integer number (24104038).

Almost surely, 2^82642412 is an apocalyptic number.

It is an amenable number.

82642412 is a deficient number, since it is larger than the sum of its proper divisors (61981816).

82642412 is a wasteful number, since it uses less digits than its factorization.

82642412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20660607 (or 20660605 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 82642412 is about 9090.7872046375. The cubic root of 82642412 is about 435.5797299720.

The spelling of 82642412 in words is "eighty-two million, six hundred forty-two thousand, four hundred twelve".