261002432 has 28 divisors (see below), whose sum is σ = 529977096. Its totient is φ = 127464960.

The previous prime is 261002429. The next prime is 261002471. The reversal of 261002432 is 234200162.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44669 + ... + 50172.

Almost surely, 2^261002432 is an apocalyptic number.

It is an amenable number.

261002432 is an abundant number, since it is smaller than the sum of its proper divisors (268974664).

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

261002432 is an equidigital number, since it uses as much as digits as its factorization.

261002432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94896 (or 94886 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 261002432 is about 16155.5696897386. The cubic root of 261002432 is about 639.0696377795.

Adding to 261002432 its reverse (234200162), we get a palindrome (495202594).

The spelling of 261002432 in words is "two hundred sixty-one million, two thousand, four hundred thirty-two".