420045022 has 8 divisors (see below), whose sum is σ = 634081176. Its totient is φ = 208684632.

The previous prime is 420045011. The next prime is 420045091. The reversal of 420045022 is 220540024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668548 + ... + 669175.

It is an arithmetic number, because the mean of its divisors is an integer number (79260147).

Almost surely, 2^420045022 is an apocalyptic number.

420045022 is a deficient number, since it is larger than the sum of its proper divisors (214036154).

420045022 is a wasteful number, since it uses less digits than its factorization.

420045022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337882.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 420045022 is about 20494.9999268114. Note that the first 4 decimals coincide. The cubic root of 420045022 is about 748.9139968144.

Adding to 420045022 its reverse (220540024), we get a palindrome (640585046).

The spelling of 420045022 in words is "four hundred twenty million, forty-five thousand, twenty-two".