80436258 has 48 divisors (see below), whose sum is σ = 205610496. Its totient is φ = 22239360.

The previous prime is 80436217. The next prime is 80436259. The reversal of 80436258 is 85263408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80436259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6391 + ... + 14202.

It is an arithmetic number, because the mean of its divisors is an integer number (4283552).

Almost surely, 2^80436258 is an apocalyptic number.

80436258 is an abundant number, since it is smaller than the sum of its proper divisors (125174238).

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

80436258 is a wasteful number, since it uses less digits than its factorization.

80436258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20639 (or 20636 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80436258 is about 8968.6263162203. The cubic root of 80436258 is about 431.6687597148.

The spelling of 80436258 in words is "eighty million, four hundred thirty-six thousand, two hundred fifty-eight".