421874654 has 8 divisors (see below), whose sum is σ = 632979360. Its totient is φ = 210881536.

The previous prime is 421874633. The next prime is 421874681. The reversal of 421874654 is 456478124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17699 + ... + 34014.

It is an arithmetic number, because the mean of its divisors is an integer number (79122420).

Almost surely, 2^421874654 is an apocalyptic number.

421874654 is a deficient number, since it is larger than the sum of its proper divisors (211104706).

421874654 is a wasteful number, since it uses less digits than its factorization.

421874654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55794.

The product of its digits is 215040, while the sum is 41.

The square root of 421874654 is about 20539.5874836862. The cubic root of 421874654 is about 749.9997949629. Note that the first 3 decimals are identical.

The spelling of 421874654 in words is "four hundred twenty-one million, eight hundred seventy-four thousand, six hundred fifty-four".