541642905 has 24 divisors (see below), whose sum is σ = 940275648. Its totient is φ = 288436896.

The previous prime is 541642903. The next prime is 541642919. The reversal of 541642905 is 509246145.

541642905 is a `hidden beast` number, since 5 + 4 + 1 + 642 + 9 + 0 + 5 = 666.

It is not a de Polignac number, because 541642905 - 2¹ = 541642903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 541642905.

It is not an unprimeable number, because it can be changed into a prime (541642903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21924 + ... + 39546.

It is an arithmetic number, because the mean of its divisors is an integer number (39178152).

Almost surely, 2^541642905 is an apocalyptic number.

It is an amenable number.

541642905 is a deficient number, since it is larger than the sum of its proper divisors (398632743).

541642905 is a wasteful number, since it uses less digits than its factorization.

541642905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18317 (or 18314 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 541642905 is about 23273.2229181951. Note that the first 3 decimals coincide. The cubic root of 541642905 is about 815.1502878155.

The spelling of 541642905 in words is "five hundred forty-one million, six hundred forty-two thousand, nine hundred five".