207490920 has 128 divisors (see below), whose sum is σ = 766160640. Its totient is φ = 43776000.

The previous prime is 207490909. The next prime is 207490961. The reversal of 207490920 is 29094702.

207490920 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1420 + ... + 20420.

It is an arithmetic number, because the mean of its divisors is an integer number (5985630).

Almost surely, 2^207490920 is an apocalyptic number.

207490920 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 207490920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383080320).

207490920 is an abundant number, since it is smaller than the sum of its proper divisors (558669720).

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

207490920 is a wasteful number, since it uses less digits than its factorization.

207490920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19035 (or 19031 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 207490920 is about 14404.5451160389. The cubic root of 207490920 is about 592.0154381779.

The spelling of 207490920 in words is "two hundred seven million, four hundred ninety thousand, nine hundred twenty".