261899096 has 16 divisors (see below), whose sum is σ = 495567600. Its totient is φ = 129747744.

The previous prime is 261899069. The next prime is 261899101. The reversal of 261899096 is 690998162.

261899096 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×261899096² = 137182272971234432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149300 + ... + 151043.

It is an arithmetic number, because the mean of its divisors is an integer number (30972975).

Almost surely, 2^261899096 is an apocalyptic number.

It is an amenable number.

261899096 is a deficient number, since it is larger than the sum of its proper divisors (233668504).

261899096 is a wasteful number, since it uses less digits than its factorization.

261899096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300458 (or 300454 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 261899096 is about 16183.2968211054. The cubic root of 261899096 is about 639.8006345170.

The spelling of 261899096 in words is "two hundred sixty-one million, eight hundred ninety-nine thousand, ninety-six".