4355421 has 8 divisors (see below), whose sum is σ = 6636864. Its totient is φ = 2488800.

The previous prime is 4355411. The next prime is 4355437. The reversal of 4355421 is 1245534.

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

It is not a de Polignac number, because 4355421 - 2¹¹ = 4353373 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4355391 and 4355400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4355401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103680 + ... + 103721.

It is an arithmetic number, because the mean of its divisors is an integer number (829608).

Almost surely, 2^4355421 is an apocalyptic number.

It is an amenable number.

4355421 is a deficient number, since it is larger than the sum of its proper divisors (2281443).

4355421 is a wasteful number, since it uses less digits than its factorization.

4355421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207411.

The product of its digits is 2400, while the sum is 24.

The square root of 4355421 is about 2086.9645421042. The cubic root of 4355421 is about 163.3089727193.

The spelling of 4355421 in words is "four million, three hundred fifty-five thousand, four hundred twenty-one".