421420102 has 8 divisors (see below), whose sum is σ = 632419200. Its totient is φ = 210613704.

The previous prime is 421420063. The next prime is 421420187. The reversal of 421420102 is 201024124.

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

It is a super-5 number, since 5×421420102⁵ (a number of 44 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42577 + ... + 51532.

It is an arithmetic number, because the mean of its divisors is an integer number (79052400).

Almost surely, 2^421420102 is an apocalyptic number.

421420102 is a deficient number, since it is larger than the sum of its proper divisors (210999098).

421420102 is a wasteful number, since it uses less digits than its factorization.

421420102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96350.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 421420102 is about 20528.5192354441. The cubic root of 421420102 is about 749.7303338667.

Adding to 421420102 its reverse (201024124), we get a palindrome (622444226).

The spelling of 421420102 in words is "four hundred twenty-one million, four hundred twenty thousand, one hundred two".