261008350 has 12 divisors (see below), whose sum is σ = 485475624. Its totient is φ = 104403320.

The previous prime is 261008333. The next prime is 261008351. The reversal of 261008350 is 53800162.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261008351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2610034 + ... + 2610133.

It is an arithmetic number, because the mean of its divisors is an integer number (40456302).

Almost surely, 2^261008350 is an apocalyptic number.

261008350 is a deficient number, since it is larger than the sum of its proper divisors (224467274).

261008350 is a wasteful number, since it uses less digits than its factorization.

261008350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220179 (or 5220174 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 261008350 is about 16155.7528453489. The cubic root of 261008350 is about 639.0744678565.

The spelling of 261008350 in words is "two hundred sixty-one million, eight thousand, three hundred fifty".