245558042 has 8 divisors (see below), whose sum is σ = 368426100. Its totient is φ = 122749344.

The previous prime is 245558041. The next prime is 245558087. The reversal of 245558042 is 240855542.

It can be written as a sum of positive squares in 2 ways, for example, as 244328161 + 1229881 = 15631^2 + 1109^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 245557993 and 245558011.

It is not an unprimeable number, because it can be changed into a prime (245558041) 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, 2417 + ... + 22292.

Almost surely, 2^245558042 is an apocalyptic number.

245558042 is a deficient number, since it is larger than the sum of its proper divisors (122868058).

245558042 is a wasteful number, since it uses less digits than its factorization.

245558042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29680.

The product of its (nonzero) digits is 64000, while the sum is 35.

The square root of 245558042 is about 15670.2917011777. The cubic root of 245558042 is about 626.2071959568.

The spelling of 245558042 in words is "two hundred forty-five million, five hundred fifty-eight thousand, forty-two".