21026483 has 8 divisors (see below), whose sum is σ = 22354320. Its totient is φ = 19720800.

The previous prime is 21026477. The next prime is 21026497. The reversal of 21026483 is 38462012.

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

It is a cyclic number.

It is not a de Polignac number, because 21026483 - 2⁶ = 21026419 is a prime.

It is a super-2 number, since 2×21026483² = 884225974698578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21026443) 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, 3560 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (2794290).

Almost surely, 2^21026483 is an apocalyptic number.

21026483 is a deficient number, since it is larger than the sum of its proper divisors (1327837).

21026483 is a wasteful number, since it uses less digits than its factorization.

21026483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11077.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 21026483 is about 4585.4643167296. The cubic root of 21026483 is about 276.0083444582.

Adding to 21026483 its reverse (38462012), we get a palindrome (59488495).

The spelling of 21026483 in words is "twenty-one million, twenty-six thousand, four hundred eighty-three".