82306404 has 36 divisors (see below), whose sum is σ = 219004240. Its totient is φ = 25991280.

The previous prime is 82306381. The next prime is 82306417. The reversal of 82306404 is 40460328.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×82306404² = 13548688278822432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59482 + ... + 60849.

Almost surely, 2^82306404 is an apocalyptic number.

It is an amenable number.

82306404 is an abundant number, since it is smaller than the sum of its proper divisors (136697836).

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

82306404 is a wasteful number, since it uses less digits than its factorization.

82306404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120360 (or 120355 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 82306404 is about 9072.2876938510. The cubic root of 82306404 is about 434.9886005733.

The spelling of 82306404 in words is "eighty-two million, three hundred six thousand, four hundred four".