80725420 has 24 divisors (see below), whose sum is σ = 170478000. Its totient is φ = 32108352.

The previous prime is 80725417. The next prime is 80725427. The reversal of 80725420 is 2452708.

It is not an unprimeable number, because it can be changed into a prime (80725427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7695 + ... + 14854.

It is an arithmetic number, because the mean of its divisors is an integer number (7103250).

Almost surely, 2^80725420 is an apocalyptic number.

It is an amenable number.

80725420 is an abundant number, since it is smaller than the sum of its proper divisors (89752580).

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

80725420 is a wasteful number, since it uses less digits than its factorization.

80725420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22737 (or 22735 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 80725420 is about 8984.7326059266. The cubic root of 80725420 is about 432.1854128084.

The spelling of 80725420 in words is "eighty million, seven hundred twenty-five thousand, four hundred twenty".