261202450 has 48 divisors (see below), whose sum is σ = 516288384. Its totient is φ = 97977600.

The previous prime is 261202439. The next prime is 261202471. The reversal of 261202450 is 54202162.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413635 + ... + 414265.

It is an arithmetic number, because the mean of its divisors is an integer number (10756008).

Almost surely, 2^261202450 is an apocalyptic number.

261202450 is a deficient number, since it is larger than the sum of its proper divisors (255085934).

261202450 is a wasteful number, since it uses less digits than its factorization.

261202450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 261202450 is about 16161.7588770530. The cubic root of 261202450 is about 639.2328454438.

The spelling of 261202450 in words is "two hundred sixty-one million, two hundred two thousand, four hundred fifty".