261302000 has 40 divisors (see below), whose sum is σ = 631833072. Its totient is φ = 104520000.

The previous prime is 261301993. The next prime is 261302009. The reversal of 261302000 is 203162.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261302009) 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, 63326 + ... + 67325.

Almost surely, 2^261302000 is an apocalyptic number.

261302000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261302000 is an abundant number, since it is smaller than the sum of its proper divisors (370531072).

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

261302000 is a wasteful number, since it uses less digits than its factorization.

261302000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130674 (or 130658 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 261302000 is about 16164.8383845927. The cubic root of 261302000 is about 639.3140436959.

Adding to 261302000 its reverse (203162), we get a palindrome (261505162).

The spelling of 261302000 in words is "two hundred sixty-one million, three hundred two thousand".