245439480 has 128 divisors (see below), whose sum is σ = 865105920. Its totient is φ = 54919680.

The previous prime is 245439457. The next prime is 245439487. The reversal of 245439480 is 84934542.

245439480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245439487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10009 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (6758640).

Almost surely, 2^245439480 is an apocalyptic number.

245439480 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 245439480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432552960).

245439480 is an abundant number, since it is smaller than the sum of its proper divisors (619666440).

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

245439480 is a wasteful number, since it uses less digits than its factorization.

245439480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14341 (or 14337 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 245439480 is about 15666.5082261492. The cubic root of 245439480 is about 626.1063965297.

The spelling of 245439480 in words is "two hundred forty-five million, four hundred thirty-nine thousand, four hundred eighty".