21376322 has 8 divisors (see below), whose sum is σ = 34979472. Its totient is φ = 9716500.

The previous prime is 21376321. The next prime is 21376339. The reversal of 21376322 is 22367312.

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

It is a junction number, because it is equal to n+sod(n) for n = 21376291 and 21376300.

It is not an unprimeable number, because it can be changed into a prime (21376321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485804 + ... + 485847.

It is an arithmetic number, because the mean of its divisors is an integer number (4372434).

Almost surely, 2^21376322 is an apocalyptic number.

21376322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21376322 is a deficient number, since it is larger than the sum of its proper divisors (13603150).

21376322 is a wasteful number, since it uses less digits than its factorization.

21376322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971664.

The product of its digits is 3024, while the sum is 26.

The square root of 21376322 is about 4623.4534711620. The cubic root of 21376322 is about 277.5306764778.

The spelling of 21376322 in words is "twenty-one million, three hundred seventy-six thousand, three hundred twenty-two".