421401102 has 16 divisors (see below), whose sum is σ = 843429072. Its totient is φ = 140362560.

The previous prime is 421401091. The next prime is 421401121. The reversal of 421401102 is 201104124.

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, 17143 + ... + 33714.

It is an arithmetic number, because the mean of its divisors is an integer number (52714317).

Almost surely, 2^421401102 is an apocalyptic number.

421401102 is an abundant number, since it is smaller than the sum of its proper divisors (422027970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421401102 is a wasteful number, since it uses less digits than its factorization.

421401102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52243.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 421401102 is about 20528.0564593924. The cubic root of 421401102 is about 749.7190663371.

Adding to 421401102 its reverse (201104124), we get a palindrome (622505226).

The spelling of 421401102 in words is "four hundred twenty-one million, four hundred one thousand, one hundred two".