23321450 has 24 divisors (see below), whose sum is σ = 45931212. Its totient is φ = 8779520.

The previous prime is 23321449. The next prime is 23321477. The reversal of 23321450 is 5412332.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12159169 + 11162281 = 3487^2 + 3341^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12869 + ... + 14568.

Almost surely, 2^23321450 is an apocalyptic number.

23321450 is a deficient number, since it is larger than the sum of its proper divisors (22609762).

23321450 is a wasteful number, since it uses less digits than its factorization.

23321450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27466 (or 27461 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23321450 is about 4829.2287168864. The cubic root of 23321450 is about 285.7054443693.

Adding to 23321450 its reverse (5412332), we get a palindrome (28733782).

The spelling of 23321450 in words is "twenty-three million, three hundred twenty-one thousand, four hundred fifty".