22299906 has 16 divisors (see below), whose sum is σ = 44646624. Its totient is φ = 7425504.

The previous prime is 22299889. The next prime is 22299911. The reversal of 22299906 is 60999222.

It is a happy number.

It is a super-3 number, since 3×22299906³ (a number of 23 digits) contains 333 as substring.

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, 8821 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (2790414).

Almost surely, 2^22299906 is an apocalyptic number.

22299906 is an abundant number, since it is smaller than the sum of its proper divisors (22346718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22299906 is a wasteful number, since it uses less digits than its factorization.

22299906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 22299906 is about 4722.2776284331. The cubic root of 22299906 is about 281.4714459415.

It can be divided in two parts, 222 and 99906, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 22299906 in words is "twenty-two million, two hundred ninety-nine thousand, nine hundred six".