207073920 has 128 divisors (see below), whose sum is σ = 682992000. Its totient is φ = 53301248.

The previous prime is 207073901. The next prime is 207073921. The reversal of 207073920 is 29370702.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (207073921) 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, 53821 + ... + 57539.

It is an arithmetic number, because the mean of its divisors is an integer number (5335875).

Almost surely, 2^207073920 is an apocalyptic number.

207073920 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 207073920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341496000).

207073920 is an abundant number, since it is smaller than the sum of its proper divisors (475918080).

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

207073920 is a wasteful number, since it uses less digits than its factorization.

207073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3758 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 207073920 is about 14390.0632382210. The cubic root of 207073920 is about 591.6185758263.

The spelling of 207073920 in words is "two hundred seven million, seventy-three thousand, nine hundred twenty".