265198480 has 20 divisors (see below), whose sum is σ = 616586652. Its totient is φ = 106079360.

The previous prime is 265198433. The next prime is 265198489. The reversal of 265198480 is 84891562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 148644864 + 116553616 = 12192^2 + 10796^2 .

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

It is not an unprimeable number, because it can be changed into a prime (265198489) 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, 1657411 + ... + 1657570.

Almost surely, 2^265198480 is an apocalyptic number.

265198480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265198480 is an abundant number, since it is smaller than the sum of its proper divisors (351388172).

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

265198480 is a wasteful number, since it uses less digits than its factorization.

265198480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314994 (or 3314988 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 265198480 is about 16284.9157197696. The cubic root of 265198480 is about 642.4761496494.

The spelling of 265198480 in words is "two hundred sixty-five million, one hundred ninety-eight thousand, four hundred eighty".