4200642 has 24 divisors (see below), whose sum is σ = 9189180. Its totient is φ = 1386720.

The previous prime is 4200629. The next prime is 4200661. The reversal of 4200642 is 2460024.

4200642 is a `hidden beast` number, since 4 + 20 + 0 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3606201 + 594441 = 1899^2 + 771^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 3032.

Almost surely, 2^4200642 is an apocalyptic number.

4200642 is an abundant number, since it is smaller than the sum of its proper divisors (4988538).

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

4200642 is a wasteful number, since it uses less digits than its factorization.

4200642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4200642 is about 2049.5467791685. The cubic root of 4200642 is about 161.3510849867.

Adding to 4200642 its reverse (2460024), we get a palindrome (6660666).

The spelling of 4200642 in words is "four million, two hundred thousand, six hundred forty-two".