245207424 has 128 divisors (see below), whose sum is σ = 812148480. Its totient is φ = 63682560.

The previous prime is 245207387. The next prime is 245207437. The reversal of 245207424 is 424702542.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 245207391 and 245207400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25422 + ... + 33714.

It is an arithmetic number, because the mean of its divisors is an integer number (6344910).

Almost surely, 2^245207424 is an apocalyptic number.

245207424 is a gapful number since it is divisible by the number (24) 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 245207424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406074240).

245207424 is an abundant number, since it is smaller than the sum of its proper divisors (566941056).

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

245207424 is a wasteful number, since it uses less digits than its factorization.

245207424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328 (or 8316 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 245207424 is about 15659.1003573002. The cubic root of 245207424 is about 625.9090124200.

Adding to 245207424 its reverse (424702542), we get a palindrome (669909966).

The spelling of 245207424 in words is "two hundred forty-five million, two hundred seven thousand, four hundred twenty-four".