82724430 has 32 divisors (see below), whose sum is σ = 204945408. Its totient is φ = 21348000.

The previous prime is 82724419. The next prime is 82724459. The reversal of 82724430 is 3442728.

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

It is a Curzon number.

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, 43546 + ... + 45405.

It is an arithmetic number, because the mean of its divisors is an integer number (6404544).

Almost surely, 2^82724430 is an apocalyptic number.

82724430 is an abundant number, since it is smaller than the sum of its proper divisors (122220978).

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

82724430 is a wasteful number, since it uses less digits than its factorization.

82724430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88992.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 82724430 is about 9095.2971364327. The cubic root of 82724430 is about 435.7237785521.

The spelling of 82724430 in words is "eighty-two million, seven hundred twenty-four thousand, four hundred thirty".