4373421 has 8 divisors (see below), whose sum is σ = 6279840. Its totient is φ = 2691312.

The previous prime is 4373419. The next prime is 4373431. The reversal of 4373421 is 1243734.

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

It is not a de Polignac number, because 4373421 - 2¹ = 4373419 is a prime.

It is a super-2 number, since 2×4373421² = 38253622486482, which contains 22 as substring.

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.

4373421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4373391 and 4373400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4373431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56031 + ... + 56108.

It is an arithmetic number, because the mean of its divisors is an integer number (784980).

Almost surely, 2^4373421 is an apocalyptic number.

It is an amenable number.

4373421 is a deficient number, since it is larger than the sum of its proper divisors (1906419).

4373421 is a wasteful number, since it uses less digits than its factorization.

4373421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112155.

The product of its digits is 2016, while the sum is 24.

The square root of 4373421 is about 2091.2725790772. The cubic root of 4373421 is about 163.5336368991.

The spelling of 4373421 in words is "four million, three hundred seventy-three thousand, four hundred twenty-one".