22072430 has 8 divisors (see below), whose sum is σ = 39730392. Its totient is φ = 8828968.

The previous prime is 22072429. The next prime is 22072441. The reversal of 22072430 is 3427022.

It is a happy number.

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

It is a super-3 number, since 3×22072430³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103612 + ... + 1103631.

It is an arithmetic number, because the mean of its divisors is an integer number (4966299).

Almost surely, 2^22072430 is an apocalyptic number.

22072430 is a deficient number, since it is larger than the sum of its proper divisors (17657962).

22072430 is a wasteful number, since it uses less digits than its factorization.

22072430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207250.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22072430 is about 4698.1304792438. The cubic root of 22072430 is about 280.5110988096.

Adding to 22072430 its reverse (3427022), we get a palindrome (25499452).

The spelling of 22072430 in words is "twenty-two million, seventy-two thousand, four hundred thirty".