200879540 has 24 divisors (see below), whose sum is σ = 429808680. Its totient is φ = 78835328.

The previous prime is 200879507. The next prime is 200879543. The reversal of 200879540 is 45978002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3701776 + 197177764 = 1924^2 + 14042^2 .

It is a super-2 number, since 2×200879540² = 80705179181223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200879540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200879543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93695 + ... + 95814.

It is an arithmetic number, because the mean of its divisors is an integer number (17908695).

Almost surely, 2^200879540 is an apocalyptic number.

200879540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200879540 is an abundant number, since it is smaller than the sum of its proper divisors (228929140).

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

200879540 is a wasteful number, since it uses less digits than its factorization.

200879540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189571 (or 189569 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 200879540 is about 14173.1979454180. The cubic root of 200879540 is about 585.6595575617.

The spelling of 200879540 in words is "two hundred million, eight hundred seventy-nine thousand, five hundred forty".