261211848 has 32 divisors (see below), whose sum is σ = 687400800. Its totient is φ = 82487808.

The previous prime is 261211843. The next prime is 261211879. The reversal of 261211848 is 848112162.

261211848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (261211843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285961 + ... + 286872.

It is an arithmetic number, because the mean of its divisors is an integer number (21481275).

Almost surely, 2^261211848 is an apocalyptic number.

It is an amenable number.

261211848 is an abundant number, since it is smaller than the sum of its proper divisors (426188952).

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

261211848 is a wasteful number, since it uses less digits than its factorization.

261211848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572861 (or 572857 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 261211848 is about 16162.0496224953. The cubic root of 261211848 is about 639.2405118321.

The spelling of 261211848 in words is "two hundred sixty-one million, two hundred eleven thousand, eight hundred forty-eight".