207640372 has 12 divisors (see below), whose sum is σ = 363853476. Its totient is φ = 103682240.

The previous prime is 207640369. The next prime is 207640373. The reversal of 207640372 is 273046702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 184253476 = 4836^2 + 13574^2 .

It is a super-2 number, since 2×207640372² = 86229048168596768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207640373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31063 + ... + 37150.

It is an arithmetic number, because the mean of its divisors is an integer number (30321123).

Almost surely, 2^207640372 is an apocalyptic number.

It is an amenable number.

207640372 is a deficient number, since it is larger than the sum of its proper divisors (156213104).

207640372 is a wasteful number, since it uses less digits than its factorization.

207640372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68978 (or 68976 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 207640372 is about 14409.7318503850. The cubic root of 207640372 is about 592.1575434432.

The spelling of 207640372 in words is "two hundred seven million, six hundred forty thousand, three hundred seventy-two".