22147402 has 8 divisors (see below), whose sum is σ = 33245316. Its totient is φ = 11065632.

The previous prime is 22147351. The next prime is 22147409. The reversal of 22147402 is 20474122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20349121 + 1798281 = 4511^2 + 1341^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22147409) 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, 348 + ... + 6664.

Almost surely, 2^22147402 is an apocalyptic number.

22147402 is a deficient number, since it is larger than the sum of its proper divisors (11097914).

22147402 is a wasteful number, since it uses less digits than its factorization.

22147402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22147402 is about 4706.1026338149. The cubic root of 22147402 is about 280.8283378868.

The spelling of 22147402 in words is "twenty-two million, one hundred forty-seven thousand, four hundred two".