80385534 has 40 divisors (see below), whose sum is σ = 185005128. Its totient is φ = 26069040.

The previous prime is 80385527. The next prime is 80385551. The reversal of 80385534 is 43558308.

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 19 ways as a sum of consecutive naturals, for example, 712 + ... + 12699.

Almost surely, 2^80385534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80385534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92502564).

80385534 is an abundant number, since it is smaller than the sum of its proper divisors (104619594).

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

80385534 is a wasteful number, since it uses less digits than its factorization.

80385534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13462 (or 13453 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 80385534 is about 8965.7980124471. The cubic root of 80385534 is about 431.5780022590.

The spelling of 80385534 in words is "eighty million, three hundred eighty-five thousand, five hundred thirty-four".