22070394 has 20 divisors (see below), whose sum is σ = 49454394. Its totient is φ = 7356744.

The previous prime is 22070393. The next prime is 22070407. The reversal of 22070394 is 49307022.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 3017169 = 4365^2 + 1737^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22070393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 67957 + ... + 68280.

Almost surely, 2^22070394 is an apocalyptic number.

22070394 is an abundant number, since it is smaller than the sum of its proper divisors (27384000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22070394 is a wasteful number, since it uses less digits than its factorization.

22070394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136251 (or 136242 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22070394 is about 4697.9137923125. The cubic root of 22070394 is about 280.5024735977.

The spelling of 22070394 in words is "twenty-two million, seventy thousand, three hundred ninety-four".