22001384 has 32 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 10624320.

The previous prime is 22001381. The next prime is 22001387. The reversal of 22001384 is 48310022.

22001384 = T₃₀₄ + T₃₀₅ + ... + T₅₄₂.

It is an interprime number because it is at equal distance from previous prime (22001381) and next prime (22001387).

It is not an unprimeable number, because it can be changed into a prime (22001381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70589 + ... + 70899.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^22001384 is an apocalyptic number.

It is an amenable number.

22001384 is a deficient number, since it is larger than the sum of its proper divisors (20680216).

22001384 is a wasteful number, since it uses less digits than its factorization.

22001384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 22001384 is about 4690.5632923989. The cubic root of 22001384 is about 280.2098087339.

The spelling of 22001384 in words is "twenty-two million, one thousand, three hundred eighty-four".