245441620 has 48 divisors (see below), whose sum is σ = 543916800. Its totient is φ = 92776320.

The previous prime is 245441561. The next prime is 245441627. The reversal of 245441620 is 26144542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245441627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268965 + ... + 269875.

It is an arithmetic number, because the mean of its divisors is an integer number (11331600).

Almost surely, 2^245441620 is an apocalyptic number.

245441620 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 245441620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271958400).

245441620 is an abundant number, since it is smaller than the sum of its proper divisors (298475180).

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

245441620 is a wasteful number, since it uses less digits than its factorization.

245441620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 245441620 is about 15666.5765245634. The cubic root of 245441620 is about 626.1082162095.

The spelling of 245441620 in words is "two hundred forty-five million, four hundred forty-one thousand, six hundred twenty".