22394477 has 8 divisors (see below), whose sum is σ = 25625856. Its totient is φ = 19171152.

The previous prime is 22394441. The next prime is 22394497. The reversal of 22394477 is 77449322.

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

It is not a de Polignac number, because 22394477 - 2⁶ = 22394413 is a prime.

It is a super-3 number, since 3×22394477³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22394477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22394497) 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, 6188 + ... + 9114.

It is an arithmetic number, because the mean of its divisors is an integer number (3203232).

Almost surely, 2^22394477 is an apocalyptic number.

It is an amenable number.

22394477 is a deficient number, since it is larger than the sum of its proper divisors (3231379).

22394477 is a wasteful number, since it uses less digits than its factorization.

22394477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027.

The product of its digits is 84672, while the sum is 38.

The square root of 22394477 is about 4732.2803171410. The cubic root of 22394477 is about 281.8687793836.

It can be divided in two parts, 2239 and 4477, that multiplied together give a triangular number (10024003 = T₄₄₇₇).

The spelling of 22394477 in words is "twenty-two million, three hundred ninety-four thousand, four hundred seventy-seven".