7021402445 has 4 divisors (see below), whose sum is σ = 8425682940. Its totient is φ = 5617121952.

The previous prime is 7021402433. The next prime is 7021402457. The reversal of 7021402445 is 5442041207.

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

It is an interprime number because it is at equal distance from previous prime (7021402433) and next prime (7021402457).

It can be written as a sum of positive squares in 2 ways, for example, as 912885796 + 6108516649 = 30214^2 + 78157^2 .

It is a cyclic number.

It is not a de Polignac number, because 7021402445 - 2⁴ = 7021402429 is a prime.

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, 702140240 + ... + 702140249.

It is an arithmetic number, because the mean of its divisors is an integer number (2106420735).

Almost surely, 2^7021402445 is an apocalyptic number.

It is an amenable number.

7021402445 is a deficient number, since it is larger than the sum of its proper divisors (1404280495).

7021402445 is a wasteful number, since it uses less digits than its factorization.

7021402445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404280494.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 7021402445 is about 83793.8091090267. The cubic root of 7021402445 is about 1914.8787898749.

The spelling of 7021402445 in words is "seven billion, twenty-one million, four hundred two thousand, four hundred forty-five".