420442341502 has 8 divisors (see below), whose sum is σ = 631397698200. Its totient is φ = 209976442104.

The previous prime is 420442341433. The next prime is 420442341509. The reversal of 420442341502 is 205143244024.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420442341509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122362177 + ... + 122365612.

It is an arithmetic number, because the mean of its divisors is an integer number (78924712275).

Almost surely, 2^420442341502 is an apocalyptic number.

420442341502 is a deficient number, since it is larger than the sum of its proper divisors (210955356698).

420442341502 is a wasteful number, since it uses less digits than its factorization.

420442341502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244728650.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 420442341502 its reverse (205143244024), we get a palindrome (625585585526).

The spelling of 420442341502 in words is "four hundred twenty billion, four hundred forty-two million, three hundred forty-one thousand, five hundred two".