21467049 has 8 divisors (see below), whose sum is σ = 28663392. Its totient is φ = 14291040.

The previous prime is 21467029. The next prime is 21467071. The reversal of 21467049 is 94076412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21467049 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (21467029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (3582924).

Almost surely, 2^21467049 is an apocalyptic number.

It is an amenable number.

21467049 is a deficient number, since it is larger than the sum of its proper divisors (7196343).

21467049 is an equidigital number, since it uses as much as digits as its factorization.

21467049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 21467049 is about 4633.2546875819. The cubic root of 21467049 is about 277.9227611793.

The spelling of 21467049 in words is "twenty-one million, four hundred sixty-seven thousand, forty-nine".