261204938 has 8 divisors (see below), whose sum is σ = 391876032. Its totient is φ = 130579596.

The previous prime is 261204929. The next prime is 261204947. The reversal of 261204938 is 839402162.

It is an interprime number because it is at equal distance from previous prime (261204929) and next prime (261204947).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 261204898 and 261204907.

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, 16031 + ... + 27917.

It is an arithmetic number, because the mean of its divisors is an integer number (48984504).

Almost surely, 2^261204938 is an apocalyptic number.

261204938 is a deficient number, since it is larger than the sum of its proper divisors (130671094).

261204938 is a wasteful number, since it uses less digits than its factorization.

261204938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22876.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 261204938 is about 16161.8358486900. The cubic root of 261204938 is about 639.2348750397.

The spelling of 261204938 in words is "two hundred sixty-one million, two hundred four thousand, nine hundred thirty-eight".