22780351 has 8 divisors (see below), whose sum is σ = 25131600. Its totient is φ = 20475840.

The previous prime is 22780343. The next prime is 22780393. The reversal of 22780351 is 15308722.

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

It is not a de Polignac number, because 22780351 - 2³ = 22780343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10656 + ... + 12613.

It is an arithmetic number, because the mean of its divisors is an integer number (3141450).

Almost surely, 2^22780351 is an apocalyptic number.

22780351 is a deficient number, since it is larger than the sum of its proper divisors (2351249).

22780351 is a wasteful number, since it uses less digits than its factorization.

22780351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23369.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 22780351 is about 4772.8765959325. The cubic root of 22780351 is about 283.4785072258.

The spelling of 22780351 in words is "twenty-two million, seven hundred eighty thousand, three hundred fifty-one".