80045490 has 32 divisors (see below), whose sum is σ = 219553920. Its totient is φ = 18296064.

The previous prime is 80045473. The next prime is 80045501. The reversal of 80045490 is 9454008.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190375 + ... + 190794.

It is an arithmetic number, because the mean of its divisors is an integer number (6861060).

Almost surely, 2^80045490 is an apocalyptic number.

80045490 is an abundant number, since it is smaller than the sum of its proper divisors (139508430).

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

80045490 is a wasteful number, since it uses less digits than its factorization.

80045490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381186.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 80045490 is about 8946.8145169105. The cubic root of 80045490 is about 430.9685935596.

Adding to 80045490 its reverse (9454008), we get a palindrome (89499498).

The spelling of 80045490 in words is "eighty million, forty-five thousand, four hundred ninety".