2420018 has 16 divisors (see below), whose sum is σ = 3884760. Its totient is φ = 1126656.

The previous prime is 2420017. The next prime is 2420051. The reversal of 2420018 is 8100242.

2420018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2229049 + 190969 = 1493^2 + 437^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 2419978 and 2420005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420017) 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 7 ways as a sum of consecutive naturals, for example, 3380 + ... + 4032.

2^2420018 is an apocalyptic number.

2420018 is a deficient number, since it is larger than the sum of its proper divisors (1464742).

2420018 is a wasteful number, since it uses less digits than its factorization.

2420018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2420018 is about 1555.6407040188. The cubic root of 2420018 is about 134.2578017607.

It can be divided in two parts, 24200 and 18, that multiplied together give a square (435600 = 660²).

The spelling of 2420018 in words is "two million, four hundred twenty thousand, eighteen".