245420430 has 64 divisors (see below), whose sum is σ = 598226688. Its totient is φ = 64431360.

The previous prime is 245420423. The next prime is 245420431. The reversal of 245420430 is 34024542.

It is a super-2 number, since 2×245420430² = 120462374922769800, 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 245420430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245420431) 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 31 ways as a sum of consecutive naturals, for example, 867069 + ... + 867351.

It is an arithmetic number, because the mean of its divisors is an integer number (9347292).

Almost surely, 2^245420430 is an apocalyptic number.

245420430 is an abundant number, since it is smaller than the sum of its proper divisors (352806258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245420430 is a wasteful number, since it uses less digits than its factorization.

245420430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 245420430 is about 15665.9002294793. The cubic root of 245420430 is about 626.0901975120.

Adding to 245420430 its reverse (34024542), we get a palindrome (279444972).

The spelling of 245420430 in words is "two hundred forty-five million, four hundred twenty thousand, four hundred thirty".