80541990 has 48 divisors (see below), whose sum is σ = 216637200. Its totient is φ = 20736576.

The previous prime is 80541947. The next prime is 80541991. The reversal of 80541990 is 9914508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80541991) 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, 12820 + ... + 18039.

It is an arithmetic number, because the mean of its divisors is an integer number (4513275).

Almost surely, 2^80541990 is an apocalyptic number.

80541990 is an abundant number, since it is smaller than the sum of its proper divisors (136095210).

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

80541990 is a wasteful number, since it uses less digits than its factorization.

80541990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30901 (or 30898 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 80541990 is about 8974.5189286112. The cubic root of 80541990 is about 431.8578171493.

The spelling of 80541990 in words is "eighty million, five hundred forty-one thousand, nine hundred ninety".