245241020 has 24 divisors (see below), whose sum is σ = 515519424. Its totient is φ = 97998656.

The previous prime is 245240987. The next prime is 245241041. The reversal of 245241020 is 20142542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 245240983 and 245241001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16502 + ... + 27618.

It is an arithmetic number, because the mean of its divisors is an integer number (21479976).

Almost surely, 2^245241020 is an apocalyptic number.

245241020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245241020 is an abundant number, since it is smaller than the sum of its proper divisors (270278404).

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

245241020 is a wasteful number, since it uses less digits than its factorization.

245241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12229 (or 12227 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 245241020 is about 15660.1730514066. The cubic root of 245241020 is about 625.9375964905.

Adding to 245241020 its reverse (20142542), we get a palindrome (265383562).

The spelling of 245241020 in words is "two hundred forty-five million, two hundred forty-one thousand, twenty".