21059060 has 24 divisors (see below), whose sum is σ = 48244896. Its totient is φ = 7657760.

The previous prime is 21059057. The next prime is 21059063. The reversal of 21059060 is 6095012.

It is an interprime number because it is at equal distance from previous prime (21059057) and next prime (21059063).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21059063) 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, 47642 + ... + 48081.

It is an arithmetic number, because the mean of its divisors is an integer number (2010204).

Almost surely, 2^21059060 is an apocalyptic number.

21059060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21059060 is an abundant number, since it is smaller than the sum of its proper divisors (27185836).

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

21059060 is a wasteful number, since it uses less digits than its factorization.

21059060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95743 (or 95741 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 21059060 is about 4589.0151448868. The cubic root of 21059060 is about 276.1508137466.

The spelling of 21059060 in words is "twenty-one million, fifty-nine thousand, sixty".