7421045 has 4 divisors (see below), whose sum is σ = 8905260. Its totient is φ = 5936832.

The previous prime is 7421033. The next prime is 7421083. The reversal of 7421045 is 5401247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4231249 + 3189796 = 2057^2 + 1786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7421045 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7421045.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 742100 + ... + 742109.

It is an arithmetic number, because the mean of its divisors is an integer number (2226315).

Almost surely, 2^7421045 is an apocalyptic number.

It is an amenable number.

7421045 is a deficient number, since it is larger than the sum of its proper divisors (1484215).

7421045 is a wasteful number, since it uses less digits than its factorization.

7421045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484214.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 7421045 is about 2724.1595034065. The cubic root of 7421045 is about 195.0540722281.

The spelling of 7421045 in words is "seven million, four hundred twenty-one thousand, forty-five".