24221394 has 12 divisors (see below), whose sum is σ = 52479726. Its totient is φ = 8073792.

The previous prime is 24221387. The next prime is 24221399. The reversal of 24221394 is 49312242.

It can be written as a sum of positive squares in only one way, i.e., 22439169 + 1782225 = 4737^2 + 1335^2 .

It is not an unprimeable number, because it can be changed into a prime (24221399) 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 5 ways as a sum of consecutive naturals, for example, 672799 + ... + 672834.

Almost surely, 2^24221394 is an apocalyptic number.

24221394 is an abundant number, since it is smaller than the sum of its proper divisors (28258332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24221394 is a wasteful number, since it uses less digits than its factorization.

24221394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345641 (or 1345638 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 24221394 is about 4921.5235445947. The cubic root of 24221394 is about 289.3341600751.

The spelling of 24221394 in words is "twenty-four million, two hundred twenty-one thousand, three hundred ninety-four".