80745490 has 32 divisors (see below), whose sum is σ = 166561920. Its totient is φ = 27608064.

The previous prime is 80745487. The next prime is 80745491. The reversal of 80745490 is 9454708.

It is not an unprimeable number, because it can be changed into a prime (80745491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27954 + ... + 30706.

It is an arithmetic number, because the mean of its divisors is an integer number (5205060).

Almost surely, 2^80745490 is an apocalyptic number.

80745490 is an abundant number, since it is smaller than the sum of its proper divisors (85816430).

80745490 is a wasteful number, since it uses less digits than its factorization.

80745490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 80745490 is about 8985.8494311890. The cubic root of 80745490 is about 432.2212265685.

The spelling of 80745490 in words is "eighty million, seven hundred forty-five thousand, four hundred ninety".