245804400 has 90 divisors (see below), whose sum is σ = 853022040. Its totient is φ = 65546880.

The previous prime is 245804393. The next prime is 245804401. The reversal of 245804400 is 4408542.

It is a tau number, because it is divible by the number of its divisors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245804401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30540 + ... + 37739.

Almost surely, 2^245804400 is an apocalyptic number.

245804400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245804400 is an abundant number, since it is smaller than the sum of its proper divisors (607217640).

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

245804400 is a wasteful number, since it uses less digits than its factorization.

245804400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68303 (or 68289 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 245804400 is about 15678.1504011156. The cubic root of 245804400 is about 626.4165416965.

The spelling of 245804400 in words is "two hundred forty-five million, eight hundred four thousand, four hundred".