421402012 has 6 divisors (see below), whose sum is σ = 737453528. Its totient is φ = 210701004.

The previous prime is 421401989. The next prime is 421402027. The reversal of 421402012 is 210204124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52675248 + ... + 52675255.

Almost surely, 2^421402012 is an apocalyptic number.

It is an amenable number.

421402012 is a deficient number, since it is larger than the sum of its proper divisors (316051516).

421402012 is a wasteful number, since it uses less digits than its factorization.

421402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105350507 (or 105350505 counting only the distinct ones).

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

The square root of 421402012 is about 20528.0786241674. The cubic root of 421402012 is about 749.7196060002.

Adding to 421402012 its reverse (210204124), we get a palindrome (631606136).

The spelling of 421402012 in words is "four hundred twenty-one million, four hundred two thousand, twelve".