421665034 has 8 divisors (see below), whose sum is σ = 722854368. Its totient is φ = 180713580.

The previous prime is 421665029. The next prime is 421665073. The reversal of 421665034 is 430566124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421664987 and 421665005.

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, 15059452 + ... + 15059479.

It is an arithmetic number, because the mean of its divisors is an integer number (90356796).

Almost surely, 2^421665034 is an apocalyptic number.

421665034 is a deficient number, since it is larger than the sum of its proper divisors (301189334).

421665034 is a wasteful number, since it uses less digits than its factorization.

421665034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30118940.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 421665034 is about 20534.4840207881. The cubic root of 421665034 is about 749.8755550561.

The spelling of 421665034 in words is "four hundred twenty-one million, six hundred sixty-five thousand, thirty-four".