245975442 has 8 divisors (see below), whose sum is σ = 491950896. Its totient is φ = 81991812.

The previous prime is 245975423. The next prime is 245975447. The reversal of 245975442 is 244579542.

It is a happy number.

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

245975442 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 245975394 and 245975403.

It is not an unprimeable number, because it can be changed into a prime (245975447) 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 3 ways as a sum of consecutive naturals, for example, 20497948 + ... + 20497959.

It is an arithmetic number, because the mean of its divisors is an integer number (61493862).

Almost surely, 2^245975442 is an apocalyptic number.

245975442 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.

245975442 is a wasteful number, since it uses less digits than its factorization.

245975442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40995912.

The product of its digits is 403200, while the sum is 42.

The square root of 245975442 is about 15683.6042413726. The cubic root of 245975442 is about 626.5618044826.

The spelling of 245975442 in words is "two hundred forty-five million, nine hundred seventy-five thousand, four hundred forty-two".