245124688 has 40 divisors (see below), whose sum is σ = 492111360. Its totient is φ = 118158720.

The previous prime is 245124673. The next prime is 245124689. The reversal of 245124688 is 886421542.

It is a happy number.

It is a super-2 number, since 2×245124688² = 120172225334194688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245124688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245124689) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 156453 + ... + 158011.

It is an arithmetic number, because the mean of its divisors is an integer number (12302784).

Almost surely, 2^245124688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245124688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246055680).

245124688 is an abundant number, since it is smaller than the sum of its proper divisors (246986672).

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

245124688 is a wasteful number, since it uses less digits than its factorization.

245124688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1909 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 245124688 is about 15656.4583479151. The cubic root of 245124688 is about 625.8386080352.

The spelling of 245124688 in words is "two hundred forty-five million, one hundred twenty-four thousand, six hundred eighty-eight".