420143042 has 16 divisors (see below), whose sum is σ = 688783392. Its totient is φ = 190619520.

The previous prime is 420143033. The next prime is 420143057. The reversal of 420143042 is 240341024.

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, 5423 + ... + 29490.

It is an arithmetic number, because the mean of its divisors is an integer number (43048962).

Almost surely, 2^420143042 is an apocalyptic number.

420143042 is a deficient number, since it is larger than the sum of its proper divisors (268640350).

420143042 is a wasteful number, since it uses less digits than its factorization.

420143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35473.

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

The square root of 420143042 is about 20497.3911022842. The cubic root of 420143042 is about 748.9722467930.

Adding to 420143042 its reverse (240341024), we get a palindrome (660484066).

The spelling of 420143042 in words is "four hundred twenty million, one hundred forty-three thousand, forty-two".