421909562 has 8 divisors (see below), whose sum is σ = 660380256. Its totient is φ = 201782812.

The previous prime is 421909561. The next prime is 421909589. The reversal of 421909562 is 265909124.

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

It is not an unprimeable number, because it can be changed into a prime (421909561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4585928 + ... + 4586019.

It is an arithmetic number, because the mean of its divisors is an integer number (82547532).

Almost surely, 2^421909562 is an apocalyptic number.

421909562 is a deficient number, since it is larger than the sum of its proper divisors (238470694).

421909562 is a wasteful number, since it uses less digits than its factorization.

421909562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171972.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 421909562 is about 20540.4372397474. The cubic root of 421909562 is about 750.0204806259.

The spelling of 421909562 in words is "four hundred twenty-one million, nine hundred nine thousand, five hundred sixty-two".