20049600 has 84 divisors (see below), whose sum is σ = 65795144. Its totient is φ = 5345280.

The previous prime is 20049593. The next prime is 20049607. The reversal of 20049600 is 694002.

It is an interprime number because it is at equal distance from previous prime (20049593) and next prime (20049607).

It is not an unprimeable number, because it can be changed into a prime (20049607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2712 + ... + 6888.

Almost surely, 2^20049600 is an apocalyptic number.

20049600 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 20049600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32897572).

20049600 is an abundant number, since it is smaller than the sum of its proper divisors (45745544).

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

20049600 is a wasteful number, since it uses less digits than its factorization.

20049600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20049600 is about 4477.6779696624. The cubic root of 20049600 is about 271.6659682737.

The spelling of 20049600 in words is "twenty million, forty-nine thousand, six hundred".