245412540 has 36 divisors (see below), whose sum is σ = 744418584. Its totient is φ = 65443296.

The previous prime is 245412539. The next prime is 245412589. The reversal of 245412540 is 45214542.

245412540 is a `hidden beast` number, since 245 + 412 + 5 + 4 + 0 = 666.

245412540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681522 + ... + 681881.

It is an arithmetic number, because the mean of its divisors is an integer number (20678294).

Almost surely, 2^245412540 is an apocalyptic number.

245412540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245412540 is an abundant number, since it is smaller than the sum of its proper divisors (499006044).

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

245412540 is a wasteful number, since it uses less digits than its factorization.

245412540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363418 (or 1363413 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 245412540 is about 15665.6484066252. The cubic root of 245412540 is about 626.0834880670.

The spelling of 245412540 in words is "two hundred forty-five million, four hundred twelve thousand, five hundred forty".