254405770242 has 16 divisors (see below), whose sum is σ = 547950889920. Its totient is φ = 78278698512.

The previous prime is 254405770211. The next prime is 254405770291. The reversal of 254405770242 is 242077504452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 254405770194 and 254405770203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630806142 + ... + 1630806297.

It is an arithmetic number, because the mean of its divisors is an integer number (34246930620).

Almost surely, 2^254405770242 is an apocalyptic number.

254405770242 is an abundant number, since it is smaller than the sum of its proper divisors (293545119678).

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

254405770242 is a wasteful number, since it uses less digits than its factorization.

254405770242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261612457.

The product of its (nonzero) digits is 627200, while the sum is 42.

The spelling of 254405770242 in words is "two hundred fifty-four billion, four hundred five million, seven hundred seventy thousand, two hundred forty-two".