80005740 has 48 divisors (see below), whose sum is σ = 237196512. Its totient is φ = 20079616.

The previous prime is 80005631. The next prime is 80005741. The reversal of 80005740 is 4750008.

It is a self number, because there is not a number n which added to its sum of digits gives 80005740.

It is not an unprimeable number, because it can be changed into a prime (80005741) 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, 38199 + ... + 40238.

It is an arithmetic number, because the mean of its divisors is an integer number (4941594).

Almost surely, 2^80005740 is an apocalyptic number.

It is an amenable number.

80005740 is an abundant number, since it is smaller than the sum of its proper divisors (157190772).

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

80005740 is a wasteful number, since it uses less digits than its factorization.

80005740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78466 (or 78464 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 80005740 is about 8944.5927799984. The cubic root of 80005740 is about 430.8972431392.

Adding to 80005740 its reverse (4750008), we get a palindrome (84755748).

The spelling of 80005740 in words is "eighty million, five thousand, seven hundred forty".