22303630 has 16 divisors (see below), whose sum is σ = 40746960. Its totient is φ = 8788032.

The previous prime is 22303607. The next prime is 22303649. The reversal of 22303630 is 3630322.

It is a super-2 number, since 2×22303630² = 994903822353800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22303598 and 22303607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15975 + ... + 17314.

It is an arithmetic number, because the mean of its divisors is an integer number (2546685).

Almost surely, 2^22303630 is an apocalyptic number.

22303630 is a deficient number, since it is larger than the sum of its proper divisors (18443330).

22303630 is a wasteful number, since it uses less digits than its factorization.

22303630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33363.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 22303630 is about 4722.6719132288. The cubic root of 22303630 is about 281.4871132919.

Adding to 22303630 its reverse (3630322), we get a palindrome (25933952).

The spelling of 22303630 in words is "twenty-two million, three hundred three thousand, six hundred thirty".