420322142 has 16 divisors (see below), whose sum is σ = 664645200. Its totient is φ = 198806400.

The previous prime is 420322139. The next prime is 420322153. The reversal of 420322142 is 241223024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19142 + ... + 34742.

It is an arithmetic number, because the mean of its divisors is an integer number (41540325).

Almost surely, 2^420322142 is an apocalyptic number.

420322142 is a deficient number, since it is larger than the sum of its proper divisors (244323058).

420322142 is a wasteful number, since it uses less digits than its factorization.

420322142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16331.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420322142 is about 20501.7594854686. The cubic root of 420322142 is about 749.0786564835.

Adding to 420322142 its reverse (241223024), we get a palindrome (661545166).

The spelling of 420322142 in words is "four hundred twenty million, three hundred twenty-two thousand, one hundred forty-two".