261300434 has 16 divisors (see below), whose sum is σ = 402125472. Its totient is φ = 127302048.

The previous prime is 261300419. The next prime is 261300437. The reversal of 261300434 is 434003162.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (261300437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337 + ... + 22899.

It is an arithmetic number, because the mean of its divisors is an integer number (25132842).

Almost surely, 2^261300434 is an apocalyptic number.

261300434 is a deficient number, since it is larger than the sum of its proper divisors (140825038).

261300434 is a wasteful number, since it uses less digits than its factorization.

261300434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 261300434 is about 16164.7899460525. The cubic root of 261300434 is about 639.3127665431.

Adding to 261300434 its reverse (434003162), we get a palindrome (695303596).

The spelling of 261300434 in words is "two hundred sixty-one million, three hundred thousand, four hundred thirty-four".