4020220242 has 32 divisors (see below), whose sum is σ = 9141591360. Its totient is φ = 1308908160.

The previous prime is 4020220223. The next prime is 4020220271. The reversal of 4020220242 is 2420220204.

4020220242 is a `hidden beast` number, since 402 + 0 + 2 + 20 + 242 = 666.

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 15 ways as a sum of consecutive naturals, for example, 863359 + ... + 868002.

It is an arithmetic number, because the mean of its divisors is an integer number (285674730).

Almost surely, 2^4020220242 is an apocalyptic number.

4020220242 is an abundant number, since it is smaller than the sum of its proper divisors (5121371118).

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

4020220242 is a wasteful number, since it uses less digits than its factorization.

4020220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731415 (or 1731409 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4020220242 is about 63405.2067420334. The cubic root of 4020220242 is about 1590.0713602718.

Adding to 4020220242 its reverse (2420220204), we get a palindrome (6440440446).

The spelling of 4020220242 in words is "four billion, twenty million, two hundred twenty thousand, two hundred forty-two".