245312020 has 48 divisors (see below), whose sum is σ = 550706688. Its totient is φ = 91562240.

The previous prime is 245312009. The next prime is 245312027. The reversal of 245312020 is 20213542.

245312020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245312027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12357 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (11473056).

Almost surely, 2^245312020 is an apocalyptic number.

245312020 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 245312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275353344).

245312020 is an abundant number, since it is smaller than the sum of its proper divisors (305394668).

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

245312020 is a wasteful number, since it uses less digits than its factorization.

245312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080 (or 13078 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 245312020 is about 15662.4397844014. The cubic root of 245312020 is about 625.9979959583.

Adding to 245312020 its reverse (20213542), we get a palindrome (265525562).

The spelling of 245312020 in words is "two hundred forty-five million, three hundred twelve thousand, twenty".