245044540 has 24 divisors (see below), whose sum is σ = 554178240. Its totient is φ = 90477888.

The previous prime is 245044529. The next prime is 245044559. The reversal of 245044540 is 45440542.

It is a junction number, because it is equal to n+sod(n) for n = 245044499 and 245044508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470980 + ... + 471499.

It is an arithmetic number, because the mean of its divisors is an integer number (23090760).

Almost surely, 2^245044540 is an apocalyptic number.

245044540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245044540 is an abundant number, since it is smaller than the sum of its proper divisors (309133700).

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

245044540 is a wasteful number, since it uses less digits than its factorization.

245044540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942501 (or 942499 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 245044540 is about 15653.8985559508. The cubic root of 245044540 is about 625.7703908066.

The spelling of 245044540 in words is "two hundred forty-five million, forty-four thousand, five hundred forty".