4220400242 has 4 divisors (see below), whose sum is σ = 6330600366. Its totient is φ = 2110200120.

The previous prime is 4220400211. The next prime is 4220400253. The reversal of 4220400242 is 2420040224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4133332681 + 87067561 = 64291^2 + 9331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055100059 + ... + 1055100062.

Almost surely, 2^4220400242 is an apocalyptic number.

4220400242 is a deficient number, since it is larger than the sum of its proper divisors (2110200124).

4220400242 is a wasteful number, since it uses less digits than its factorization.

4220400242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110200123.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4220400242 is about 64964.6076106059. The cubic root of 4220400242 is about 1616.0366767911.

Adding to 4220400242 its reverse (2420040224), we get a palindrome (6640440466).

The spelling of 4220400242 in words is "four billion, two hundred twenty million, four hundred thousand, two hundred forty-two".