261958704 has 100 divisors (see below), whose sum is σ = 789814776. Its totient is φ = 74812416.

The previous prime is 261958703. The next prime is 261958733. The reversal of 261958704 is 407859162.

261958704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (261958703) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 114112 + ... + 116384.

Almost surely, 2^261958704 is an apocalyptic number.

261958704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 261958704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394907388).

261958704 is an abundant number, since it is smaller than the sum of its proper divisors (527856072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261958704 is an equidigital number, since it uses as much as digits as its factorization.

261958704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 261958704 is about 16185.1383682686. The cubic root of 261958704 is about 639.8491701857.

The spelling of 261958704 in words is "two hundred sixty-one million, nine hundred fifty-eight thousand, seven hundred four".