420142354252 has 24 divisors (see below), whose sum is σ = 760755618000. Its totient is φ = 202786522176.

The previous prime is 420142354211. The next prime is 420142354267. The reversal of 420142354252 is 252453241024.

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, 218374 + ... + 942322.

It is an arithmetic number, because the mean of its divisors is an integer number (31698150750).

Almost surely, 2^420142354252 is an apocalyptic number.

It is an amenable number.

420142354252 is a deficient number, since it is larger than the sum of its proper divisors (340613263748).

420142354252 is a wasteful number, since it uses less digits than its factorization.

420142354252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728985 (or 728983 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 420142354252 its reverse (252453241024), we get a palindrome (672595595276).

The spelling of 420142354252 in words is "four hundred twenty billion, one hundred forty-two million, three hundred fifty-four thousand, two hundred fifty-two".