4374021 has 8 divisors (see below), whose sum is σ = 5892544. Its totient is φ = 2885760.

The previous prime is 4374001. The next prime is 4374031. The reversal of 4374021 is 1204734.

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

It is not a de Polignac number, because 4374021 - 2⁵ = 4373989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4374001) 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, 7225 + ... + 7806.

It is an arithmetic number, because the mean of its divisors is an integer number (736568).

Almost surely, 2^4374021 is an apocalyptic number.

It is an amenable number.

4374021 is a deficient number, since it is larger than the sum of its proper divisors (1518523).

4374021 is a wasteful number, since it uses less digits than its factorization.

4374021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 4374021 is about 2091.4160274799. The cubic root of 4374021 is about 163.5411150797.

Adding to 4374021 its reverse (1204734), we get a palindrome (5578755).

The spelling of 4374021 in words is "four million, three hundred seventy-four thousand, twenty-one".