654844542 has 32 divisors (see below), whose sum is σ = 1442638080. Its totient is φ = 196509120.

The previous prime is 654844517. The next prime is 654844543. The reversal of 654844542 is 245448456.

It is a junction number, because it is equal to n+sod(n) for n = 654844494 and 654844503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654844543) 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 15 ways as a sum of consecutive naturals, for example, 41367 + ... + 54962.

It is an arithmetic number, because the mean of its divisors is an integer number (45082440).

Almost surely, 2^654844542 is an apocalyptic number.

654844542 is an abundant number, since it is smaller than the sum of its proper divisors (787793538).

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

654844542 is a wasteful number, since it uses less digits than its factorization.

654844542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96448.

The product of its digits is 614400, while the sum is 42.

The square root of 654844542 is about 25589.9304805621. The cubic root of 654844542 is about 868.3858483677.

The spelling of 654844542 in words is "six hundred fifty-four million, eight hundred forty-four thousand, five hundred forty-two".