245031400 has 24 divisors (see below), whose sum is σ = 569698470. Its totient is φ = 98012480.

The previous prime is 245031389. The next prime is 245031401. The reversal of 245031400 is 4130542.

It can be written as a sum of positive squares in 3 ways, for example, as 93199716 + 151831684 = 9654^2 + 12322^2 .

It is not an unprimeable number, because it can be changed into a prime (245031401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612379 + ... + 612778.

Almost surely, 2^245031400 is an apocalyptic number.

245031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245031400 is an abundant number, since it is smaller than the sum of its proper divisors (324667070).

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

245031400 is a wasteful number, since it uses less digits than its factorization.

245031400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225173 (or 1225164 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 245031400 is about 15653.4788465695. The cubic root of 245031400 is about 625.7592053980.

Adding to 245031400 its reverse (4130542), we get a palindrome (249161942).

The spelling of 245031400 in words is "two hundred forty-five million, thirty-one thousand, four hundred".