20534700 has 36 divisors (see below), whose sum is σ = 59414600. Its totient is φ = 5475840.

The previous prime is 20534677. The next prime is 20534711. The reversal of 20534700 is 743502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33925 + ... + 34524.

Almost surely, 2^20534700 is an apocalyptic number.

20534700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20534700 is an abundant number, since it is smaller than the sum of its proper divisors (38879900).

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

20534700 is a wasteful number, since it uses less digits than its factorization.

20534700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68466 (or 68459 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20534700 is about 4531.5229228152. The cubic root of 20534700 is about 273.8395174393.

The spelling of 20534700 in words is "twenty million, five hundred thirty-four thousand, seven hundred".