80625440 has 48 divisors (see below), whose sum is σ = 217691712. Its totient is φ = 27642624.

The previous prime is 80625437. The next prime is 80625443. The reversal of 80625440 is 4452608.

It is an interprime number because it is at equal distance from previous prime (80625437) and next prime (80625443).

It is not an unprimeable number, because it can be changed into a prime (80625443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34874 + ... + 37113.

It is an arithmetic number, because the mean of its divisors is an integer number (4535244).

Almost surely, 2^80625440 is an apocalyptic number.

80625440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80625440 is an abundant number, since it is smaller than the sum of its proper divisors (137066272).

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

80625440 is a wasteful number, since it uses less digits than its factorization.

80625440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72009 (or 72001 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 80625440 is about 8979.1669992266. The cubic root of 80625440 is about 432.0069157558.

The spelling of 80625440 in words is "eighty million, six hundred twenty-five thousand, four hundred forty".