82440470 has 32 divisors (see below), whose sum is σ = 175067136. Its totient is φ = 27352800.

The previous prime is 82440469. The next prime is 82440473. The reversal of 82440470 is 7404428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82440473) 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, 16826 + ... + 21165.

It is an arithmetic number, because the mean of its divisors is an integer number (5470848).

Almost surely, 2^82440470 is an apocalyptic number.

82440470 is an abundant number, since it is smaller than the sum of its proper divisors (92626666).

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

82440470 is a wasteful number, since it uses less digits than its factorization.

82440470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38036.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 82440470 is about 9079.6734522779. The cubic root of 82440470 is about 435.2246516536.

Adding to 82440470 its reverse (7404428), we get a palindrome (89844898).

The spelling of 82440470 in words is "eighty-two million, four hundred forty thousand, four hundred seventy".