261628462 has 8 divisors (see below), whose sum is σ = 402014592. Its totient is φ = 127623600.

The previous prime is 261628457. The next prime is 261628463. The reversal of 261628462 is 264826162.

261628462 is nontrivially palindromic in base 6.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261628463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595214 + ... + 1595377.

It is an arithmetic number, because the mean of its divisors is an integer number (50251824).

Almost surely, 2^261628462 is an apocalyptic number.

261628462 is a deficient number, since it is larger than the sum of its proper divisors (140386130).

261628462 is a wasteful number, since it uses less digits than its factorization.

261628462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190634.

The product of its digits is 55296, while the sum is 37.

The square root of 261628462 is about 16174.9331374198. The cubic root of 261628462 is about 639.5801787714.

The spelling of 261628462 in words is "two hundred sixty-one million, six hundred twenty-eight thousand, four hundred sixty-two".