22070656 has 16 divisors (see below), whose sum is σ = 43969140. Its totient is φ = 11035264.

The previous prime is 22070627. The next prime is 22070663. The reversal of 22070656 is 65607022.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×22070656² = 974227712540672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86086 + ... + 86341.

Almost surely, 2^22070656 is an apocalyptic number.

It is an amenable number.

22070656 is a deficient number, since it is larger than the sum of its proper divisors (21898484).

22070656 is an equidigital number, since it uses as much as digits as its factorization.

22070656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172441 (or 172429 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 22070656 is about 4697.9416769475. The cubic root of 22070656 is about 280.5035835515.

Adding to 22070656 its reverse (65607022), we get a palindrome (87677678).

It can be divided in two parts, 220 and 70656, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 22070656 in words is "twenty-two million, seventy thousand, six hundred fifty-six".