245846340 has 120 divisors (see below), whose sum is σ = 797975640. Its totient is φ = 63286272.

The previous prime is 245846329. The next prime is 245846353. The reversal of 245846340 is 43648542.

It can be written as a sum of positive squares in 4 ways, for example, as 85266756 + 160579584 = 9234^2 + 12672^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 245846295 and 245846304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44364 + ... + 49596.

It is an arithmetic number, because the mean of its divisors is an integer number (6649797).

Almost surely, 2^245846340 is an apocalyptic number.

245846340 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 245846340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398987820).

245846340 is an abundant number, since it is smaller than the sum of its proper divisors (552129300).

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

245846340 is a wasteful number, since it uses less digits than its factorization.

245846340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 245846340 is about 15679.4878742898. The cubic root of 245846340 is about 626.4521667921.

The spelling of 245846340 in words is "two hundred forty-five million, eight hundred forty-six thousand, three hundred forty".