24670421 has 4 divisors (see below), whose sum is σ = 25743072. Its totient is φ = 23597772.

The previous prime is 24670411. The next prime is 24670439. The reversal of 24670421 is 12407642.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24670421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24670411) 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 3 ways as a sum of consecutive naturals, for example, 536291 + ... + 536336.

It is an arithmetic number, because the mean of its divisors is an integer number (6435768).

Almost surely, 2^24670421 is an apocalyptic number.

It is an amenable number.

24670421 is a deficient number, since it is larger than the sum of its proper divisors (1072651).

24670421 is a wasteful number, since it uses less digits than its factorization.

24670421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072650.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 24670421 is about 4966.9327557357. The cubic root of 24670421 is about 291.1111591798. Note that the first 4 decimals are identical.

The spelling of 24670421 in words is "twenty-four million, six hundred seventy thousand, four hundred twenty-one".