261492334 has 8 divisors (see below), whose sum is σ = 415311408. Its totient is φ = 123055200.

The previous prime is 261492293. The next prime is 261492353. The reversal of 261492334 is 433294162.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 7690951 = 261492334 / (2 + 6 + 1 + 4 + 9 + 2 + 3 + 3 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 261492334.

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, 3845442 + ... + 3845509.

It is an arithmetic number, because the mean of its divisors is an integer number (51913926).

Almost surely, 2^261492334 is an apocalyptic number.

261492334 is a deficient number, since it is larger than the sum of its proper divisors (153819074).

261492334 is a wasteful number, since it uses less digits than its factorization.

261492334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690970.

The product of its digits is 31104, while the sum is 34.

The square root of 261492334 is about 16170.7245972467. The cubic root of 261492334 is about 639.4692327954.

The spelling of 261492334 in words is "two hundred sixty-one million, four hundred ninety-two thousand, three hundred thirty-four".