20474300 has 72 divisors (see below), whose sum is σ = 55413120. Its totient is φ = 6379200.

The previous prime is 20474297. The next prime is 20474303. The reversal of 20474300 is 347402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20474297) and next prime (20474303).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474303) by changing a digit.

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, 6371 + ... + 9029.

Almost surely, 2^20474300 is an apocalyptic number.

20474300 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 20474300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27706560).

20474300 is an abundant number, since it is smaller than the sum of its proper divisors (34938820).

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

20474300 is a wasteful number, since it uses less digits than its factorization.

20474300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20474300 is about 4524.8535887916. The cubic root of 20474300 is about 273.5707666576.

The spelling of 20474300 in words is "twenty million, four hundred seventy-four thousand, three hundred".