207073540 has 24 divisors (see below), whose sum is σ = 444108672. Its totient is φ = 81066720.

The previous prime is 207073507. The next prime is 207073547. The reversal of 207073540 is 45370702.

It is a junction number, because it is equal to n+sod(n) for n = 207073499 and 207073508.

It is not an unprimeable number, because it can be changed into a prime (207073547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109206 + ... + 111085.

It is an arithmetic number, because the mean of its divisors is an integer number (18504528).

Almost surely, 2^207073540 is an apocalyptic number.

207073540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207073540 is an abundant number, since it is smaller than the sum of its proper divisors (237035132).

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

207073540 is a wasteful number, since it uses less digits than its factorization.

207073540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220347 (or 220345 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 207073540 is about 14390.0500346594. The cubic root of 207073540 is about 591.6182139343.

The spelling of 207073540 in words is "two hundred seven million, seventy-three thousand, five hundred forty".