2420078 has 4 divisors (see below), whose sum is σ = 3630120. Its totient is φ = 1210038.

The previous prime is 2420071. The next prime is 2420111. The reversal of 2420078 is 8700242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8700242 = 2 ⋅4350121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420071) 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 as a sum of consecutive naturals, namely, 605018 + ... + 605021.

It is an arithmetic number, because the mean of its divisors is an integer number (907530).

2^2420078 is an apocalyptic number.

2420078 is a deficient number, since it is larger than the sum of its proper divisors (1210042).

2420078 is a wasteful number, since it uses less digits than its factorization.

2420078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210041.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2420078 is about 1555.6599885579. The cubic root of 2420078 is about 134.2589113119.

It can be divided in two parts, 24 and 20078, that added together give a palindrome (20102).

The spelling of 2420078 in words is "two million, four hundred twenty thousand, seventy-eight".