245368440 has 80 divisors (see below), whose sum is σ = 824721480. Its totient is φ = 65430720.

The previous prime is 245368421. The next prime is 245368457. The reversal of 245368440 is 44863542.

245368440 is a `hidden beast` number, since 2 + 4 + 536 + 84 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 245368395 and 245368404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34626 + ... + 41105.

Almost surely, 2^245368440 is an apocalyptic number.

245368440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245368440 is an abundant number, since it is smaller than the sum of its proper divisors (579353040).

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

245368440 is a wasteful number, since it uses less digits than its factorization.

245368440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75754 (or 75741 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 245368440 is about 15664.2408050949. The cubic root of 245368440 is about 626.0459839582.

The spelling of 245368440 in words is "two hundred forty-five million, three hundred sixty-eight thousand, four hundred forty".