8445426201 has 15 divisors (see below), whose sum is σ = 12617242693. Its totient is φ = 5629732740.

The previous prime is 8445426173. The next prime is 8445426257. The reversal of 8445426201 is 1026245448.

The square root of 8445426201 is 91899.

It is a perfect power (a square), and thus also a powerful number.

8445426201 is a `hidden beast` number, since 8 + 445 + 4 + 2 + 6 + 201 = 666.

It is not a de Polignac number, because 8445426201 - 2¹⁷ = 8445295129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8445426001) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 821986 + ... + 832196.

Almost surely, 2^8445426201 is an apocalyptic number.

8445426201 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8445426201 is the 91899-th square number.

8445426201 is the 45950-th centered octagonal number.

It is an amenable number.

8445426201 is a deficient number, since it is larger than the sum of its proper divisors (4171816492).

8445426201 is an frugal number, since it uses more digits than its factorization.

8445426201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20434 (or 10214 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The cubic root of 8445426201 is about 2036.4504949961.

Multiplying 8445426201 by its sum of digits (36), we get a square (304035343236 = 551394²).

The spelling of 8445426201 in words is "eight billion, four hundred forty-five million, four hundred twenty-six thousand, two hundred one".