21267002 has 4 divisors (see below), whose sum is σ = 31900506. Its totient is φ = 10633500.

The previous prime is 21266977. The next prime is 21267011. The reversal of 21267002 is 20076212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20511841 + 755161 = 4529^2 + 869^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5316749 + ... + 5316752.

Almost surely, 2^21267002 is an apocalyptic number.

21267002 is a deficient number, since it is larger than the sum of its proper divisors (10633504).

21267002 is a wasteful number, since it uses less digits than its factorization.

21267002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10633503.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 21267002 is about 4611.6159857473. The cubic root of 21267002 is about 277.0567639450.

The spelling of 21267002 in words is "twenty-one million, two hundred sixty-seven thousand, two".