7450722021 has 16 divisors (see below), whose sum is σ = 10376645760. Its totient is φ = 4749299520.

The previous prime is 7450721987. The next prime is 7450722029. The reversal of 7450722021 is 1202270547.

It is not a de Polignac number, because 7450722021 - 2¹⁴ = 7450705637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7450722021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7450722029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406770 + ... + 424691.

It is an arithmetic number, because the mean of its divisors is an integer number (648540360).

Almost surely, 2^7450722021 is an apocalyptic number.

It is an amenable number.

7450722021 is a deficient number, since it is larger than the sum of its proper divisors (2925923739).

7450722021 is a wasteful number, since it uses less digits than its factorization.

7450722021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831596.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 7450722021 is about 86317.5649621790. The cubic root of 7450722021 is about 1953.1373577462.

Adding to 7450722021 its reverse (1202270547), we get a palindrome (8652992568).

The spelling of 7450722021 in words is "seven billion, four hundred fifty million, seven hundred twenty-two thousand, twenty-one".