421667852 has 6 divisors (see below), whose sum is σ = 737918748. Its totient is φ = 210833924.

The previous prime is 421667839. The next prime is 421667861. The reversal of 421667852 is 258766124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52708478 + ... + 52708485.

It is an arithmetic number, because the mean of its divisors is an integer number (122986458).

Almost surely, 2^421667852 is an apocalyptic number.

It is an amenable number.

421667852 is a deficient number, since it is larger than the sum of its proper divisors (316250896).

421667852 is a wasteful number, since it uses less digits than its factorization.

421667852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105416967 (or 105416965 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 421667852 is about 20534.5526369580. The cubic root of 421667852 is about 749.8772255326.

The spelling of 421667852 in words is "four hundred twenty-one million, six hundred sixty-seven thousand, eight hundred fifty-two".