245045242 has 32 divisors (see below), whose sum is σ = 441201600. Its totient is φ = 100839168.

The previous prime is 245045219. The next prime is 245045249. The reversal of 245045242 is 242540542.

It is a self number, because there is not a number n which added to its sum of digits gives 245045242.

It is not an unprimeable number, because it can be changed into a prime (245045249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6192 + ... + 22987.

It is an arithmetic number, because the mean of its divisors is an integer number (13787550).

Almost surely, 2^245045242 is an apocalyptic number.

245045242 is a deficient number, since it is larger than the sum of its proper divisors (196156358).

245045242 is a wasteful number, since it uses less digits than its factorization.

245045242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29230.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 245045242 is about 15653.9209784641. The cubic root of 245045242 is about 625.7709883720.

Adding to 245045242 its reverse (242540542), we get a palindrome (487585784).

The spelling of 245045242 in words is "two hundred forty-five million, forty-five thousand, two hundred forty-two".