654405042 has 8 divisors (see below), whose sum is σ = 1308810096. Its totient is φ = 218135012.

The previous prime is 654405019. The next prime is 654405047. The reversal of 654405042 is 240504456.

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

654405042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (654405047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54533748 + ... + 54533759.

It is an arithmetic number, because the mean of its divisors is an integer number (163601262).

Almost surely, 2^654405042 is an apocalyptic number.

654405042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

654405042 is a wasteful number, since it uses less digits than its factorization.

654405042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109067512.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 654405042 is about 25581.3416770896. The cubic root of 654405042 is about 868.1915320220.

Adding to 654405042 its reverse (240504456), we get a palindrome (894909498).

The spelling of 654405042 in words is "six hundred fifty-four million, four hundred five thousand, forty-two".