22738406 has 4 divisors (see below), whose sum is σ = 34107612. Its totient is φ = 11369202.

The previous prime is 22738369. The next prime is 22738439. The reversal of 22738406 is 60483722.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684600 + ... + 5684603.

It is an arithmetic number, because the mean of its divisors is an integer number (8526903).

Almost surely, 2^22738406 is an apocalyptic number.

22738406 is a deficient number, since it is larger than the sum of its proper divisors (11369206).

22738406 is a wasteful number, since it uses less digits than its factorization.

22738406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11369205.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22738406 is about 4768.4804707580. The cubic root of 22738406 is about 283.3044125806.

The spelling of 22738406 in words is "twenty-two million, seven hundred thirty-eight thousand, four hundred six".