207242385 has 16 divisors (see below), whose sum is σ = 378957696. Its totient is φ = 94739328.

The previous prime is 207242353. The next prime is 207242419. The reversal of 207242385 is 583242702.

It is not a de Polignac number, because 207242385 - 2⁵ = 207242353 is a prime.

It is a super-2 number, since 2×207242385² = 85898812280976450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986764 + ... + 986973.

It is an arithmetic number, because the mean of its divisors is an integer number (23684856).

Almost surely, 2^207242385 is an apocalyptic number.

It is an amenable number.

207242385 is a deficient number, since it is larger than the sum of its proper divisors (171715311).

207242385 is a wasteful number, since it uses less digits than its factorization.

207242385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973752.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 207242385 is about 14395.9155665765. The cubic root of 207242385 is about 591.7789694474.

The spelling of 207242385 in words is "two hundred seven million, two hundred forty-two thousand, three hundred eighty-five".