261140462 has 16 divisors (see below), whose sum is σ = 437260032. Its totient is φ = 115939320.

The previous prime is 261140461. The next prime is 261140471. The reversal of 261140462 is 264041162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261140461) 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, 137078 + ... + 138969.

It is an arithmetic number, because the mean of its divisors is an integer number (27328752).

Almost surely, 2^261140462 is an apocalyptic number.

261140462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261140462 is a deficient number, since it is larger than the sum of its proper divisors (176119570).

261140462 is a wasteful number, since it uses less digits than its factorization.

261140462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276103.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 261140462 is about 16159.8410264458. The cubic root of 261140462 is about 639.1822743248.

The spelling of 261140462 in words is "two hundred sixty-one million, one hundred forty thousand, four hundred sixty-two".