1663354242 has 48 divisors (see below), whose sum is σ = 3942993600. Its totient is φ = 502581600.

The previous prime is 1663354213. The next prime is 1663354267. The reversal of 1663354242 is 2424533661.

1663354242 is a `hidden beast` number, since 1 + 6 + 63 + 354 + 242 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1663354197 and 1663354206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57067 + ... + 81137.

It is an arithmetic number, because the mean of its divisors is an integer number (82145700).

Almost surely, 2^1663354242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1663354242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971496800).

1663354242 is an abundant number, since it is smaller than the sum of its proper divisors (2279639358).

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

1663354242 is a wasteful number, since it uses less digits than its factorization.

1663354242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24439 (or 24436 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1663354242 is about 40784.2401179671. The cubic root of 1663354242 is about 1184.8451178229.

The spelling of 1663354242 in words is "one billion, six hundred sixty-three million, three hundred fifty-four thousand, two hundred forty-two".