245623042 has 8 divisors (see below), whose sum is σ = 421068096. Its totient is φ = 105267012.

The previous prime is 245623039. The next prime is 245623043. The reversal of 245623042 is 240326542.

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

It is a super-2 number, since 2×245623042² = 120661357522667528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245623042.

It is not an unprimeable number, because it can be changed into a prime (245623043) 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, 8772238 + ... + 8772265.

It is an arithmetic number, because the mean of its divisors is an integer number (52633512).

Almost surely, 2^245623042 is an apocalyptic number.

245623042 is a deficient number, since it is larger than the sum of its proper divisors (175445054).

245623042 is a wasteful number, since it uses less digits than its factorization.

245623042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17544512.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 245623042 is about 15672.3655521430. The cubic root of 245623042 is about 626.2624440989.

Adding to 245623042 its reverse (240326542), we get a palindrome (485949584).

The spelling of 245623042 in words is "two hundred forty-five million, six hundred twenty-three thousand, forty-two".