605261421 has 48 divisors (see below), whose sum is σ = 954068544. Its totient is φ = 368266752.

The previous prime is 605261417. The next prime is 605261467. The reversal of 605261421 is 124162506.

605261421 is a `hidden beast` number, since 605 + 26 + 14 + 21 = 666.

It is not a de Polignac number, because 605261421 - 2² = 605261417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605261021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1295830 + ... + 1296296.

It is an arithmetic number, because the mean of its divisors is an integer number (19876428).

Almost surely, 2^605261421 is an apocalyptic number.

It is an amenable number.

605261421 is a deficient number, since it is larger than the sum of its proper divisors (348807123).

605261421 is a wasteful number, since it uses less digits than its factorization.

605261421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 605261421 is about 24602.0613160767. The cubic root of 605261421 is about 845.8908574390.

The spelling of 605261421 in words is "six hundred five million, two hundred sixty-one thousand, four hundred twenty-one".