4080078 has 16 divisors (see below), whose sum is σ = 9066960. Its totient is φ = 1360008.

The previous prime is 4080077. The next prime is 4080103. The reversal of 4080078 is 8700804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080071) 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, 37725 + ... + 37832.

It is an arithmetic number, because the mean of its divisors is an integer number (566685).

Almost surely, 2^4080078 is an apocalyptic number.

4080078 is an abundant number, since it is smaller than the sum of its proper divisors (4986882).

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

4080078 is a wasteful number, since it uses less digits than its factorization.

4080078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75568 (or 75562 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 4080078 is about 2019.9202954572. The cubic root of 4080078 is about 159.7924130811.

The spelling of 4080078 in words is "four million, eighty thousand, seventy-eight".