207136420 has 48 divisors (see below), whose sum is σ = 454809600. Its totient is φ = 79148160.

The previous prime is 207136417. The next prime is 207136429. The reversal of 207136420 is 24631702.

It is not an unprimeable number, because it can be changed into a prime (207136429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46866 + ... + 51094.

It is an arithmetic number, because the mean of its divisors is an integer number (9475200).

Almost surely, 2^207136420 is an apocalyptic number.

207136420 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 207136420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227404800).

207136420 is an abundant number, since it is smaller than the sum of its proper divisors (247673180).

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

207136420 is a wasteful number, since it uses less digits than its factorization.

207136420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348 (or 4346 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 207136420 is about 14392.2347118160. The cubic root of 207136420 is about 591.6780915160.

The spelling of 207136420 in words is "two hundred seven million, one hundred thirty-six thousand, four hundred twenty".