21060046 has 8 divisors (see below), whose sum is σ = 36102960. Its totient is φ = 9025728.

The previous prime is 21060023. The next prime is 21060049. The reversal of 21060046 is 64006012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21060049) 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, 752131 + ... + 752158.

It is an arithmetic number, because the mean of its divisors is an integer number (4512870).

Almost surely, 2^21060046 is an apocalyptic number.

21060046 is a deficient number, since it is larger than the sum of its proper divisors (15042914).

21060046 is a wasteful number, since it uses less digits than its factorization.

21060046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504298.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 21060046 is about 4589.1225740876. The cubic root of 21060046 is about 276.1551235378.

Adding to 21060046 its reverse (64006012), we get a palindrome (85066058).

The spelling of 21060046 in words is "twenty-one million, sixty thousand, forty-six".