22473409 has 24 divisors (see below), whose sum is σ = 27907200. Its totient is φ = 17992800.

The previous prime is 22473403. The next prime is 22473421. The reversal of 22473409 is 90437422.

It is not a de Polignac number, because 22473409 - 2⁷ = 22473281 is a prime.

It is a super-2 number, since 2×22473409² = 1010108224162562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22473403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93912 + ... + 94150.

It is an arithmetic number, because the mean of its divisors is an integer number (1162800).

Almost surely, 2^22473409 is an apocalyptic number.

It is an amenable number.

22473409 is a deficient number, since it is larger than the sum of its proper divisors (5433791).

22473409 is a wasteful number, since it uses less digits than its factorization.

22473409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22473409 is about 4740.6127241107. The cubic root of 22473409 is about 282.1995510948.

The spelling of 22473409 in words is "twenty-two million, four hundred seventy-three thousand, four hundred nine".