421402196 has 6 divisors (see below), whose sum is σ = 737453850. Its totient is φ = 210701096.

The previous prime is 421402153. The next prime is 421402217. The reversal of 421402196 is 691204124.

It can be written as a sum of positive squares in only one way, i.e., 297079696 + 124322500 = 17236^2 + 11150^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52675271 + ... + 52675278.

It is an arithmetic number, because the mean of its divisors is an integer number (122908975).

Almost surely, 2^421402196 is an apocalyptic number.

It is an amenable number.

421402196 is a deficient number, since it is larger than the sum of its proper divisors (316051654).

421402196 is a wasteful number, since it uses less digits than its factorization.

421402196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105350553 (or 105350551 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 421402196 is about 20528.0831058333. The cubic root of 421402196 is about 749.7197151187.

The spelling of 421402196 in words is "four hundred twenty-one million, four hundred two thousand, one hundred ninety-six".