22878073 has 8 divisors (see below), whose sum is σ = 24497640. Its totient is φ = 21288960.

The previous prime is 22878067. The next prime is 22878083. The reversal of 22878073 is 37087822.

It can be written as a sum of positive squares in 4 ways, for example, as 1087849 + 21790224 = 1043^2 + 4668^2 .

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 22878073 - 2¹⁷ = 22747001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22878043) 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, 6048 + ... + 9073.

It is an arithmetic number, because the mean of its divisors is an integer number (3062205).

Almost surely, 2^22878073 is an apocalyptic number.

It is an amenable number.

22878073 is a deficient number, since it is larger than the sum of its proper divisors (1619567).

22878073 is a wasteful number, since it uses less digits than its factorization.

22878073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15227.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 22878073 is about 4783.1028632050. The cubic root of 22878073 is about 283.8832795834.

The spelling of 22878073 in words is "twenty-two million, eight hundred seventy-eight thousand, seventy-three".