21480295 has 8 divisors (see below), whose sum is σ = 25835040. Its totient is φ = 17145120.

The previous prime is 21480293. The next prime is 21480301. The reversal of 21480295 is 59208412.

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

It is not a de Polignac number, because 21480295 - 2¹ = 21480293 is a prime.

It is a super-2 number, since 2×21480295² = 922806146574050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21480293) 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, 2355 + ... + 6964.

It is an arithmetic number, because the mean of its divisors is an integer number (3229380).

Almost surely, 2^21480295 is an apocalyptic number.

21480295 is a deficient number, since it is larger than the sum of its proper divisors (4354745).

21480295 is an equidigital number, since it uses as much as digits as its factorization.

21480295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 21480295 is about 4634.6839158674. The cubic root of 21480295 is about 277.9799124592.

The spelling of 21480295 in words is "twenty-one million, four hundred eighty thousand, two hundred ninety-five".