20674700 has 72 divisors (see below), whose sum is σ = 47809440. Its totient is φ = 7744000.

The previous prime is 20674699. The next prime is 20674729. The reversal of 20674700 is 747602.

It is a self number, because there is not a number n which added to its sum of digits gives 20674700.

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 23 ways as a sum of consecutive naturals, for example, 204650 + ... + 204750.

It is an arithmetic number, because the mean of its divisors is an integer number (664020).

Almost surely, 2^20674700 is an apocalyptic number.

20674700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20674700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23904720).

20674700 is an abundant number, since it is smaller than the sum of its proper divisors (27134740).

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

20674700 is a wasteful number, since it uses less digits than its factorization.

20674700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20674700 is about 4546.9440286856. The cubic root of 20674700 is about 274.4604296186.

The spelling of 20674700 in words is "twenty million, six hundred seventy-four thousand, seven hundred".