207231264 has 48 divisors (see below), whose sum is σ = 604427040. Its totient is φ = 69076800.

The previous prime is 207231263. The next prime is 207231289. The reversal of 207231264 is 462132702.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (207231263) 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, 119062 + ... + 120789.

It is an arithmetic number, because the mean of its divisors is an integer number (12592230).

Almost surely, 2^207231264 is an apocalyptic number.

207231264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

207231264 is an abundant number, since it is smaller than the sum of its proper divisors (397195776).

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

207231264 is a wasteful number, since it uses less digits than its factorization.

207231264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239870 (or 239856 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 207231264 is about 14395.5293060033. The cubic root of 207231264 is about 591.7683839492.

Adding to 207231264 its reverse (462132702), we get a palindrome (669363966).

The spelling of 207231264 in words is "two hundred seven million, two hundred thirty-one thousand, two hundred sixty-four".