261380002 has 32 divisors (see below), whose sum is σ = 434367360. Its totient is φ = 117194880.

The previous prime is 261379999. The next prime is 261380011. The reversal of 261380002 is 200083162.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382353 + ... + 383035.

It is an arithmetic number, because the mean of its divisors is an integer number (13573980).

Almost surely, 2^261380002 is an apocalyptic number.

261380002 is a deficient number, since it is larger than the sum of its proper divisors (172987358).

261380002 is a wasteful number, since it uses less digits than its factorization.

261380002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 261380002 is about 16167.2509104053. The cubic root of 261380002 is about 639.3776518489.

The spelling of 261380002 in words is "two hundred sixty-one million, three hundred eighty thousand, two".