245251944 has 96 divisors (see below), whose sum is σ = 792155520. Its totient is φ = 67022208.

The previous prime is 245251939. The next prime is 245251957. The reversal of 245251944 is 449152542.

It is a happy number.

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 = 245251899 and 245251908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1014 + ... + 22170.

It is an arithmetic number, because the mean of its divisors is an integer number (8251620).

Almost surely, 2^245251944 is an apocalyptic number.

245251944 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 245251944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396077760).

245251944 is an abundant number, since it is smaller than the sum of its proper divisors (546903576).

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

245251944 is a wasteful number, since it uses less digits than its factorization.

245251944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21199 (or 21192 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 245251944 is about 15660.5218303861. The cubic root of 245251944 is about 625.9468902603.

The spelling of 245251944 in words is "two hundred forty-five million, two hundred fifty-one thousand, nine hundred forty-four".