80415378 has 12 divisors (see below), whose sum is σ = 174233358. Its totient is φ = 26805120.

The previous prime is 80415371. The next prime is 80415397. The reversal of 80415378 is 87351408.

80415378 is a `hidden beast` number, since 80 + 41 + 537 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69505569 + 10909809 = 8337^2 + 3303^2 .

It is not an unprimeable number, because it can be changed into a prime (80415371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2233743 + ... + 2233778.

Almost surely, 2^80415378 is an apocalyptic number.

80415378 is an abundant number, since it is smaller than the sum of its proper divisors (93817980).

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

80415378 is a wasteful number, since it uses less digits than its factorization.

80415378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467529 (or 4467526 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 80415378 is about 8967.4621828029. The cubic root of 80415378 is about 431.6314049864.

The spelling of 80415378 in words is "eighty million, four hundred fifteen thousand, three hundred seventy-eight".