7350421 has 8 divisors (see below), whose sum is σ = 8006040. Its totient is φ = 6707712.

The previous prime is 7350419. The next prime is 7350433. The reversal of 7350421 is 1240537.

It can be written as a sum of positive squares in 4 ways, for example, as 900 + 7349521 = 30^2 + 2711^2 .

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 7350421 - 2¹ = 7350419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7350392 and 7350401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7350401) 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, 2020 + ... + 4333.

It is an arithmetic number, because the mean of its divisors is an integer number (1000755).

Almost surely, 2^7350421 is an apocalyptic number.

It is an amenable number.

7350421 is a deficient number, since it is larger than the sum of its proper divisors (655619).

7350421 is a wasteful number, since it uses less digits than its factorization.

7350421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 7350421 is about 2711.1659853281. The cubic root of 7350421 is about 194.4333406690.

Adding to 7350421 its reverse (1240537), we get a palindrome (8590958).

The spelling of 7350421 in words is "seven million, three hundred fifty thousand, four hundred twenty-one".