82220470 has 8 divisors (see below), whose sum is σ = 147996864. Its totient is φ = 32888184.

The previous prime is 82220461. The next prime is 82220473. The reversal of 82220470 is 7402228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82220473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4111014 + ... + 4111033.

It is an arithmetic number, because the mean of its divisors is an integer number (18499608).

Almost surely, 2^82220470 is an apocalyptic number.

82220470 is a deficient number, since it is larger than the sum of its proper divisors (65776394).

82220470 is a wasteful number, since it uses less digits than its factorization.

82220470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222054.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 82220470 is about 9067.5503858539. The cubic root of 82220470 is about 434.8371610521.

Adding to 82220470 its reverse (7402228), we get a palindrome (89622698).

The spelling of 82220470 in words is "eighty-two million, two hundred twenty thousand, four hundred seventy".