22801009 has 8 divisors (see below), whose sum is σ = 28427328. Its totient is φ = 17766960.

The previous prime is 22801003. The next prime is 22801021. The reversal of 22801009 is 90010822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22801009 - 2³ = 22801001 is a prime.

It is a super-2 number, since 2×22801009² = 1039772022836162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22801001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147982 + ... + 148135.

It is an arithmetic number, because the mean of its divisors is an integer number (3553416).

Almost surely, 2^22801009 is an apocalyptic number.

It is an amenable number.

22801009 is a deficient number, since it is larger than the sum of its proper divisors (5626319).

22801009 is a wasteful number, since it uses less digits than its factorization.

22801009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296135.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 22801009 is about 4775.0402092548. The cubic root of 22801009 is about 283.5641706662.

It can be divided in two parts, 2280100 and 9, that multiplied together give a square (20520900 = 4530²).

The spelling of 22801009 in words is "twenty-two million, eight hundred one thousand, nine".