21032060 has 48 divisors (see below), whose sum is σ = 53452224. Its totient is φ = 6786048.

The previous prime is 21032059. The next prime is 21032083. The reversal of 21032060 is 6023012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2039 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (1113588).

Almost surely, 2^21032060 is an apocalyptic number.

21032060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21032060 is an abundant number, since it is smaller than the sum of its proper divisors (32420164).

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

21032060 is a wasteful number, since it uses less digits than its factorization.

21032060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870 (or 8868 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 21032060 is about 4586.0723936720. The cubic root of 21032060 is about 276.0327448372.

Adding to 21032060 its reverse (6023012), we get a palindrome (27055072).

The spelling of 21032060 in words is "twenty-one million, thirty-two thousand, sixty".