245477856 has 96 divisors (see below), whose sum is σ = 697697280. Its totient is φ = 75124224.

The previous prime is 245477839. The next prime is 245477861. The reversal of 245477856 is 658774542.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 297861 + ... + 298683.

It is an arithmetic number, because the mean of its divisors is an integer number (7267680).

Almost surely, 2^245477856 is an apocalyptic number.

245477856 is a gapful number since it is divisible by the number (26) 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 245477856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348848640).

245477856 is an abundant number, since it is smaller than the sum of its proper divisors (452219424).

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

245477856 is a wasteful number, since it uses less digits than its factorization.

245477856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 1080 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 48.

The square root of 245477856 is about 15667.7329566214. The cubic root of 245477856 is about 626.1390267147.

The spelling of 245477856 in words is "two hundred forty-five million, four hundred seventy-seven thousand, eight hundred fifty-six".