22780069 has 8 divisors (see below), whose sum is σ = 25823840. Its totient is φ = 19920816.

The previous prime is 22780061. The next prime is 22780081. The reversal of 22780069 is 96008722.

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

It is not a de Polignac number, because 22780069 - 2³ = 22780061 is a prime.

It is a super-2 number, since 2×22780069² = 1037863087289522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45867 + ... + 46360.

It is an arithmetic number, because the mean of its divisors is an integer number (3227980).

Almost surely, 2^22780069 is an apocalyptic number.

It is an amenable number.

22780069 is a deficient number, since it is larger than the sum of its proper divisors (3043771).

22780069 is a wasteful number, since it uses less digits than its factorization.

22780069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92259.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 22780069 is about 4772.8470539082. The cubic root of 22780069 is about 283.4773374857.

The spelling of 22780069 in words is "twenty-two million, seven hundred eighty thousand, sixty-nine".