4526421 has 16 divisors (see below), whose sum is σ = 6220800. Its totient is φ = 2926448.

The previous prime is 4526419. The next prime is 4526447. The reversal of 4526421 is 1246254.

It is a cyclic number.

It is not a de Polignac number, because 4526421 - 2¹ = 4526419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4526391 and 4526400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4526411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18820 + ... + 19058.

It is an arithmetic number, because the mean of its divisors is an integer number (388800).

Almost surely, 2^4526421 is an apocalyptic number.

It is an amenable number.

4526421 is a deficient number, since it is larger than the sum of its proper divisors (1694379).

4526421 is a wasteful number, since it uses less digits than its factorization.

4526421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its digits is 1920, while the sum is 24.

The square root of 4526421 is about 2127.5387188016. The cubic root of 4526421 is about 165.4188440588.

The spelling of 4526421 in words is "four million, five hundred twenty-six thousand, four hundred twenty-one".