80545830 has 32 divisors (see below), whose sum is σ = 204682464. Its totient is φ = 20215296.

The previous prime is 80545819. The next prime is 80545873. The reversal of 80545830 is 3854508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80545791 and 80545800.

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, 78457 + ... + 79476.

It is an arithmetic number, because the mean of its divisors is an integer number (6396327).

Almost surely, 2^80545830 is an apocalyptic number.

80545830 is an abundant number, since it is smaller than the sum of its proper divisors (124136634).

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

80545830 is a wasteful number, since it uses less digits than its factorization.

80545830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157960.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 80545830 is about 8974.7328651052. The cubic root of 80545830 is about 431.8646802677.

The spelling of 80545830 in words is "eighty million, five hundred forty-five thousand, eight hundred thirty".