4520078 has 4 divisors (see below), whose sum is σ = 6780120. Its totient is φ = 2260038.

The previous prime is 4520071. The next prime is 4520099. The reversal of 4520078 is 8700254.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4520078² = 40862210252168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520071) 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 as a sum of consecutive naturals, namely, 1130018 + ... + 1130021.

It is an arithmetic number, because the mean of its divisors is an integer number (1695030).

Almost surely, 2^4520078 is an apocalyptic number.

4520078 is a deficient number, since it is larger than the sum of its proper divisors (2260042).

4520078 is a wasteful number, since it uses less digits than its factorization.

4520078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260041.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 4520078 is about 2126.0475065247. The cubic root of 4520078 is about 165.3415392577.

The spelling of 4520078 in words is "four million, five hundred twenty thousand, seventy-eight".