261432002 has 32 divisors (see below), whose sum is σ = 434693952. Its totient is φ = 117157824.

The previous prime is 261431999. The next prime is 261432019. The reversal of 261432002 is 200234162.

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 15 ways as a sum of consecutive naturals, for example, 219653 + ... + 220839.

It is an arithmetic number, because the mean of its divisors is an integer number (13584186).

Almost surely, 2^261432002 is an apocalyptic number.

261432002 is a deficient number, since it is larger than the sum of its proper divisors (173261950).

261432002 is a wasteful number, since it uses less digits than its factorization.

261432002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

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

The square root of 261432002 is about 16168.8590197330. The cubic root of 261432002 is about 639.4200491671.

Adding to 261432002 its reverse (200234162), we get a palindrome (461666164).

The spelling of 261432002 in words is "two hundred sixty-one million, four hundred thirty-two thousand, two".