7452021 has 8 divisors (see below), whose sum is σ = 9948960. Its totient is φ = 4961552.

The previous prime is 7452019. The next prime is 7452077. The reversal of 7452021 is 1202547.

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

It is a cyclic number.

It is not a de Polignac number, because 7452021 - 2¹ = 7452019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7452091) 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, 2791 + ... + 4763.

It is an arithmetic number, because the mean of its divisors is an integer number (1243620).

Almost surely, 2^7452021 is an apocalyptic number.

It is an amenable number.

7452021 is a deficient number, since it is larger than the sum of its proper divisors (2496939).

7452021 is a wasteful number, since it uses less digits than its factorization.

7452021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7452021 is about 2729.8390062419. The cubic root of 7452021 is about 195.3250856231.

Adding to 7452021 its reverse (1202547), we get a palindrome (8654568).

The spelling of 7452021 in words is "seven million, four hundred fifty-two thousand, twenty-one".