80540004 has 12 divisors (see below), whose sum is σ = 187926704. Its totient is φ = 26846664.

The previous prime is 80539969. The next prime is 80540017. The reversal of 80540004 is 40004508.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 3355822 + ... + 3355845.

Almost surely, 2^80540004 is an apocalyptic number.

It is an amenable number.

80540004 is an abundant number, since it is smaller than the sum of its proper divisors (107386700).

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

80540004 is a wasteful number, since it uses less digits than its factorization.

80540004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711674 (or 6711672 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 80540004 is about 8974.4082813298. The cubic root of 80540004 is about 431.8542675446.

The spelling of 80540004 in words is "eighty million, five hundred forty thousand, four".