272874640 has 20 divisors (see below), whose sum is σ = 634433724. Its totient is φ = 109149824.

The previous prime is 272874631. The next prime is 272874647. The reversal of 272874640 is 46478272.

It can be written as a sum of positive squares in 2 ways, for example, as 78216336 + 194658304 = 8844^2 + 13952^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 272874593 and 272874602.

It is not an unprimeable number, because it can be changed into a prime (272874647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1705387 + ... + 1705546.

Almost surely, 2^272874640 is an apocalyptic number.

272874640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272874640 is an abundant number, since it is smaller than the sum of its proper divisors (361559084).

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

272874640 is a wasteful number, since it uses less digits than its factorization.

272874640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410946 (or 3410940 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 272874640 is about 16518.9176400877. The cubic root of 272874640 is about 648.6161010308.

The spelling of 272874640 in words is "two hundred seventy-two million, eight hundred seventy-four thousand, six hundred forty".