80390478 has 48 divisors (see below), whose sum is σ = 191410560. Its totient is φ = 22431024.

The previous prime is 80390449. The next prime is 80390489. The reversal of 80390478 is 87409308.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 9463 + ... + 15821.

It is an arithmetic number, because the mean of its divisors is an integer number (3987720).

Almost surely, 2^80390478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80390478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95705280).

80390478 is an abundant number, since it is smaller than the sum of its proper divisors (111020082).

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

80390478 is a wasteful number, since it uses less digits than its factorization.

80390478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421 (or 6414 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80390478 is about 8966.0737226503. The cubic root of 80390478 is about 431.5868499451.

The spelling of 80390478 in words is "eighty million, three hundred ninety thousand, four hundred seventy-eight".