7420421075 has 12 divisors (see below), whose sum is σ = 9205612440. Its totient is φ = 5933568960.

The previous prime is 7420420939. The next prime is 7420421087. The reversal of 7420421075 is 5701240247.

It is not a de Polignac number, because 7420421075 - 2²⁴ = 7403643859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13634 + ... + 122583.

It is an arithmetic number, because the mean of its divisors is an integer number (767134370).

Almost surely, 2^7420421075 is an apocalyptic number.

7420421075 is a deficient number, since it is larger than the sum of its proper divisors (1785191365).

7420421075 is a wasteful number, since it uses less digits than its factorization.

7420421075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138406 (or 138401 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 7420421075 is about 86141.8659828077. The cubic root of 7420421075 is about 1950.4860567886.

The spelling of 7420421075 in words is "seven billion, four hundred twenty million, four hundred twenty-one thousand, seventy-five".