423847454 has 4 divisors (see below), whose sum is σ = 635771184. Its totient is φ = 211923726.

The previous prime is 423847447. The next prime is 423847471. The reversal of 423847454 is 454748324.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 105961862 + ... + 105961865.

It is an arithmetic number, because the mean of its divisors is an integer number (158942796).

Almost surely, 2^423847454 is an apocalyptic number.

423847454 is a deficient number, since it is larger than the sum of its proper divisors (211923730).

423847454 is a wasteful number, since it uses less digits than its factorization.

423847454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211923729.

The product of its digits is 430080, while the sum is 41.

The square root of 423847454 is about 20587.5558044174. Note that the first 3 decimals coincide. The cubic root of 423847454 is about 751.1670446966.

The spelling of 423847454 in words is "four hundred twenty-three million, eight hundred forty-seven thousand, four hundred fifty-four".