245054420 has 96 divisors (see below), whose sum is σ = 592365312. Its totient is φ = 84446208.

The previous prime is 245054393. The next prime is 245054423. The reversal of 245054420 is 24450542.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 245054420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245054423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256664 + ... + 257616.

It is an arithmetic number, because the mean of its divisors is an integer number (6170472).

Almost surely, 2^245054420 is an apocalyptic number.

245054420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245054420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296182656).

245054420 is an abundant number, since it is smaller than the sum of its proper divisors (347310892).

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

245054420 is a wasteful number, since it uses less digits than its factorization.

245054420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 245054420 is about 15654.2141291091. The cubic root of 245054420 is about 625.7788008809.

The spelling of 245054420 in words is "two hundred forty-five million, fifty-four thousand, four hundred twenty".