421210268 has 24 divisors (see below), whose sum is σ = 787140480. Its totient is φ = 196781760.

The previous prime is 421210267. The next prime is 421210271. The reversal of 421210268 is 862012124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421210267) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 54971 + ... + 62162.

It is an arithmetic number, because the mean of its divisors is an integer number (32797520).

Almost surely, 2^421210268 is an apocalyptic number.

It is an amenable number.

421210268 is a deficient number, since it is larger than the sum of its proper divisors (365930212).

421210268 is a wasteful number, since it uses less digits than its factorization.

421210268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117197 (or 117195 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 421210268 is about 20523.4078066972. The cubic root of 421210268 is about 749.6058776671.

The spelling of 421210268 in words is "four hundred twenty-one million, two hundred ten thousand, two hundred sixty-eight".