80945574 has 12 divisors (see below), whose sum is σ = 161935236. Its totient is φ = 26974512.

The previous prime is 80945573. The next prime is 80945587. The reversal of 80945574 is 47554908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80945573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20202 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (13494603).

Almost surely, 2^80945574 is an apocalyptic number.

80945574 is an abundant number, since it is smaller than the sum of its proper divisors (80989662).

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

80945574 is an frugal number, since it uses more digits than its factorization.

80945574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 80945574 is about 8996.9758252426. The cubic root of 80945574 is about 432.5779408912.

The spelling of 80945574 in words is "eighty million, nine hundred forty-five thousand, five hundred seventy-four".