421367894 has 4 divisors (see below), whose sum is σ = 632051844. Its totient is φ = 210683946.

The previous prime is 421367857. The next prime is 421367929. The reversal of 421367894 is 498763124.

It is a semiprime because it is the product of two primes.

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, 105341972 + ... + 105341975.

It is an arithmetic number, because the mean of its divisors is an integer number (158012961).

Almost surely, 2^421367894 is an apocalyptic number.

421367894 is a deficient number, since it is larger than the sum of its proper divisors (210683950).

421367894 is a wasteful number, since it uses less digits than its factorization.

421367894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210683949.

The product of its digits is 290304, while the sum is 44.

The square root of 421367894 is about 20527.2475992277. The cubic root of 421367894 is about 749.6993722541.

The spelling of 421367894 in words is "four hundred twenty-one million, three hundred sixty-seven thousand, eight hundred ninety-four".