261054948 has 72 divisors (see below), whose sum is σ = 773013024. Its totient is φ = 67804800.

The previous prime is 261054931. The next prime is 261054953. The reversal of 261054948 is 849450162.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13713 + ... + 26648.

It is an arithmetic number, because the mean of its divisors is an integer number (10736292).

Almost surely, 2^261054948 is an apocalyptic number.

261054948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

261054948 is an abundant number, since it is smaller than the sum of its proper divisors (511958076).

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

261054948 is a wasteful number, since it uses less digits than its factorization.

261054948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40393 (or 40384 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 261054948 is about 16157.1949298138. The cubic root of 261054948 is about 639.1124970614.

The spelling of 261054948 in words is "two hundred sixty-one million, fifty-four thousand, nine hundred forty-eight".