420202442 has 16 divisors (see below), whose sum is σ = 723794400. Its totient is φ = 180948240.

The previous prime is 420202441. The next prime is 420202457. The reversal of 420202442 is 244202024.

It is not an unprimeable number, because it can be changed into a prime (420202441) 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, 502217 + ... + 503052.

It is an arithmetic number, because the mean of its divisors is an integer number (45237150).

Almost surely, 2^420202442 is an apocalyptic number.

420202442 is a deficient number, since it is larger than the sum of its proper divisors (303591958).

420202442 is a wasteful number, since it uses less digits than its factorization.

420202442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005301.

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

The square root of 420202442 is about 20498.8400159619. The cubic root of 420202442 is about 749.0075418001.

Adding to 420202442 its reverse (244202024), we get a palindrome (664404466).

The spelling of 420202442 in words is "four hundred twenty million, two hundred two thousand, four hundred forty-two".