22047406 has 4 divisors (see below), whose sum is σ = 33071112. Its totient is φ = 11023702.

The previous prime is 22047401. The next prime is 22047427. The reversal of 22047406 is 60474022.

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

It is a super-2 number, since 2×22047406² = 972176222657672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511850 + ... + 5511853.

It is an arithmetic number, because the mean of its divisors is an integer number (8267778).

Almost surely, 2^22047406 is an apocalyptic number.

22047406 is a deficient number, since it is larger than the sum of its proper divisors (11023706).

22047406 is a wasteful number, since it uses less digits than its factorization.

22047406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023705.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 22047406 is about 4695.4665369908. The cubic root of 22047406 is about 280.4050515199.

The spelling of 22047406 in words is "twenty-two million, forty-seven thousand, four hundred six".