21411010 has 16 divisors (see below), whose sum is σ = 38604672. Its totient is φ = 8550000.

The previous prime is 21410981. The next prime is 21411011. The reversal of 21411010 is 1011412.

21411010 = T₂₉₂₄ + T₂₉₂₅ + ... + T₂₉₂₈.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (21411011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6085 + ... + 8935.

It is an arithmetic number, because the mean of its divisors is an integer number (2412792).

Almost surely, 2^21411010 is an apocalyptic number.

21411010 is a deficient number, since it is larger than the sum of its proper divisors (17193662).

21411010 is a wasteful number, since it uses less digits than its factorization.

21411010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 21411010 is about 4627.2032589892. The cubic root of 21411010 is about 277.6807144725.

Adding to 21411010 its reverse (1011412), we get a palindrome (22422422).

The spelling of 21411010 in words is "twenty-one million, four hundred eleven thousand, ten".