21460010 has 64 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 7015680.

The previous prime is 21460007. The next prime is 21460057. The reversal of 21460010 is 1006412.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61316 + ... + 61664.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 2^21460010 is an apocalyptic number.

21460010 is an abundant number, since it is smaller than the sum of its proper divisors (25109590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21460010 is a wasteful number, since it uses less digits than its factorization.

21460010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21460010 is about 4632.4950080923. The cubic root of 21460010 is about 277.8923810966.

Adding to 21460010 its reverse (1006412), we get a palindrome (22466422).

It can be divided in two parts, 21 and 460010, that multiplied together give a triangular number (9660210 = T₄₃₉₅).

The spelling of 21460010 in words is "twenty-one million, four hundred sixty thousand, ten".