245099400 has 288 divisors, whose sum is σ = 949314240. Its totient is φ = 50941440.

The previous prime is 245099381. The next prime is 245099417. The reversal of 245099400 is 4990542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3658167 + ... + 3658233.

It is an arithmetic number, because the mean of its divisors is an integer number (3296230).

Almost surely, 2^245099400 is an apocalyptic number.

245099400 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 245099400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474657120).

245099400 is an abundant number, since it is smaller than the sum of its proper divisors (704214840).

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

245099400 is a wasteful number, since it uses less digits than its factorization.

245099400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 245099400 is about 15655.6507370342. The cubic root of 245099400 is about 625.8170859939.

The spelling of 245099400 in words is "two hundred forty-five million, ninety-nine thousand, four hundred".