22147352 has 8 divisors (see below), whose sum is σ = 41526300. Its totient is φ = 11073672.

The previous prime is 22147351. The next prime is 22147409. The reversal of 22147352 is 25374122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22147352² = 981010401223808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147351) 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 as a sum of consecutive naturals, namely, 1384202 + ... + 1384217.

Almost surely, 2^22147352 is an apocalyptic number.

It is an amenable number.

22147352 is a deficient number, since it is larger than the sum of its proper divisors (19378948).

22147352 is a wasteful number, since it uses less digits than its factorization.

22147352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768425 (or 2768421 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 22147352 is about 4706.0973215606. The cubic root of 22147352 is about 280.8281265538.

The spelling of 22147352 in words is "twenty-two million, one hundred forty-seven thousand, three hundred fifty-two".