21060094 has 16 divisors (see below), whose sum is σ = 36276480. Its totient is φ = 9068760.

The previous prime is 21060079. The next prime is 21060097. The reversal of 21060094 is 49006012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21060097) 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, 24774 + ... + 25609.

It is an arithmetic number, because the mean of its divisors is an integer number (2267280).

Almost surely, 2^21060094 is an apocalyptic number.

21060094 is a deficient number, since it is larger than the sum of its proper divisors (15216386).

21060094 is a wasteful number, since it uses less digits than its factorization.

21060094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50415.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 21060094 is about 4589.1278038425. The cubic root of 21060094 is about 276.1553333416.

The spelling of 21060094 in words is "twenty-one million, sixty thousand, ninety-four".