2402420 has 12 divisors (see below), whose sum is σ = 5045124. Its totient is φ = 960960.

The previous prime is 2402401. The next prime is 2402431. The reversal of 2402420 is 242042.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1378276 + 1024144 = 1174^2 + 1012^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2402395 and 2402404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60041 + ... + 60080.

It is an arithmetic number, because the mean of its divisors is an integer number (420427).

2^2402420 is an apocalyptic number.

2402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402420 is an abundant number, since it is smaller than the sum of its proper divisors (2642704).

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

2402420 is a wasteful number, since it uses less digits than its factorization.

2402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120130 (or 120128 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2402420 is about 1549.9741933336. The cubic root of 2402420 is about 133.9315756702.

Adding to 2402420 its reverse (242042), we get a palindrome (2644462).

The spelling of 2402420 in words is "two million, four hundred two thousand, four hundred twenty".