420002124 has 24 divisors (see below), whose sum is σ = 985141248. Its totient is φ = 139266960.

The previous prime is 420002123. The next prime is 420002171. The reversal of 420002124 is 421200024.

It is a super-2 number, since 2×420002124² = 352803568329022752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420002123) 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, 89332 + ... + 93915.

It is an arithmetic number, because the mean of its divisors is an integer number (41047552).

Almost surely, 2^420002124 is an apocalyptic number.

It is an amenable number.

420002124 is an abundant number, since it is smaller than the sum of its proper divisors (565139124).

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

420002124 is a wasteful number, since it uses less digits than its factorization.

420002124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183445 (or 183443 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 420002124 is about 20493.9533521476. The cubic root of 420002124 is about 748.8885011296. Note that the first 3 decimals are identical.

Adding to 420002124 its reverse (421200024), we get a palindrome (841202148).

The spelling of 420002124 in words is "four hundred twenty million, two thousand, one hundred twenty-four".