22078930 has 8 divisors (see below), whose sum is σ = 39742092. Its totient is φ = 8831568.

The previous prime is 22078897. The next prime is 22078939. The reversal of 22078930 is 3987022.

It can be written as a sum of positive squares in 2 ways, for example, as 21040569 + 1038361 = 4587^2 + 1019^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22078892 and 22078901.

It is not an unprimeable number, because it can be changed into a prime (22078939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103937 + ... + 1103956.

Almost surely, 2^22078930 is an apocalyptic number.

22078930 is a deficient number, since it is larger than the sum of its proper divisors (17663162).

22078930 is a wasteful number, since it uses less digits than its factorization.

22078930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207900.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22078930 is about 4698.8221928479. The cubic root of 22078930 is about 280.5386315460.

The spelling of 22078930 in words is "twenty-two million, seventy-eight thousand, nine hundred thirty".