21367094 has 16 divisors (see below), whose sum is σ = 36701856. Its totient is φ = 9139200.

The previous prime is 21367067. The next prime is 21367111. The reversal of 21367094 is 49076312.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21367094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7784 + ... + 10164.

It is an arithmetic number, because the mean of its divisors is an integer number (2293866).

Almost surely, 2^21367094 is an apocalyptic number.

21367094 is a deficient number, since it is larger than the sum of its proper divisors (15334762).

21367094 is a wasteful number, since it uses less digits than its factorization.

21367094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 21367094 is about 4622.4554081137. The cubic root of 21367094 is about 277.4907347500.

The spelling of 21367094 in words is "twenty-one million, three hundred sixty-seven thousand, ninety-four".