4002420424 has 32 divisors (see below), whose sum is σ = 7600203000. Its totient is φ = 1975767552.

The previous prime is 4002420419. The next prime is 4002420427. The reversal of 4002420424 is 4240242004.

It can be written as a sum of positive squares in 4 ways, for example, as 3996515524 + 5904900 = 63218^2 + 2430^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4002420395 and 4002420404.

It is not an unprimeable number, because it can be changed into a prime (4002420427) 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, 518062 + ... + 525730.

Almost surely, 2^4002420424 is an apocalyptic number.

It is an amenable number.

4002420424 is a deficient number, since it is larger than the sum of its proper divisors (3597782576).

4002420424 is a wasteful number, since it uses less digits than its factorization.

4002420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497 (or 8493 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4002420424 is about 63264.6854414056. The cubic root of 4002420424 is about 1587.7211693755.

Adding to 4002420424 its reverse (4240242004), we get a palindrome (8242662428).

The spelling of 4002420424 in words is "four billion, two million, four hundred twenty thousand, four hundred twenty-four".