421275650 has 24 divisors (see below), whose sum is σ = 786957444. Its totient is φ = 167782400.

The previous prime is 421275649. The next prime is 421275683. The reversal of 421275650 is 56572124.

It can be written as a sum of positive squares in 6 ways, for example, as 151757761 + 269517889 = 12319^2 + 16417^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6431 + ... + 29730.

Almost surely, 2^421275650 is an apocalyptic number.

421275650 is a deficient number, since it is larger than the sum of its proper divisors (365681794).

421275650 is a wasteful number, since it uses less digits than its factorization.

421275650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36406 (or 36401 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 421275650 is about 20525.0006090134. Note that the first 3 decimals coincide. The cubic root of 421275650 is about 749.6446613021.

The spelling of 421275650 in words is "four hundred twenty-one million, two hundred seventy-five thousand, six hundred fifty".