420142214 has 4 divisors (see below), whose sum is σ = 630213324. Its totient is φ = 210071106.

The previous prime is 420142213. The next prime is 420142271. The reversal of 420142214 is 412241024.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420142213) by changing a digit.

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 as a sum of consecutive naturals, namely, 105035552 + ... + 105035555.

It is an arithmetic number, because the mean of its divisors is an integer number (157553331).

Almost surely, 2^420142214 is an apocalyptic number.

420142214 is a deficient number, since it is larger than the sum of its proper divisors (210071110).

420142214 is a wasteful number, since it uses less digits than its factorization.

420142214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210071109.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420142214 is about 20497.3709045819. The cubic root of 420142214 is about 748.9717547784.

Adding to 420142214 its reverse (412241024), we get a palindrome (832383238).

The spelling of 420142214 in words is "four hundred twenty million, one hundred forty-two thousand, two hundred fourteen".