82400306 has 16 divisors (see below), whose sum is σ = 131721984. Its totient is φ = 38569344.

The previous prime is 82400273. The next prime is 82400317. The reversal of 82400306 is 60300428.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16895 + ... + 21218.

It is an arithmetic number, because the mean of its divisors is an integer number (8232624).

Almost surely, 2^82400306 is an apocalyptic number.

82400306 is a deficient number, since it is larger than the sum of its proper divisors (49321678).

82400306 is a wasteful number, since it uses less digits than its factorization.

82400306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38185.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 82400306 is about 9077.4614292764. The cubic root of 82400306 is about 435.1539614435.

The spelling of 82400306 in words is "eighty-two million, four hundred thousand, three hundred six".