245643334 has 4 divisors (see below), whose sum is σ = 368465004. Its totient is φ = 122821666.

The previous prime is 245643331. The next prime is 245643367. The reversal of 245643334 is 433346542.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 245643334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245643331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61410832 + ... + 61410835.

It is an arithmetic number, because the mean of its divisors is an integer number (92116251).

Almost surely, 2^245643334 is an apocalyptic number.

245643334 is a deficient number, since it is larger than the sum of its proper divisors (122821670).

245643334 is a wasteful number, since it uses less digits than its factorization.

245643334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122821669.

The product of its digits is 103680, while the sum is 34.

The square root of 245643334 is about 15673.0129203035. The cubic root of 245643334 is about 626.2796897225.

Adding to 245643334 its reverse (433346542), we get a palindrome (678989876).

The spelling of 245643334 in words is "two hundred forty-five million, six hundred forty-three thousand, three hundred thirty-four".