245642616 has 24 divisors (see below), whose sum is σ = 665282280. Its totient is φ = 81880848.

The previous prime is 245642611. The next prime is 245642623. The reversal of 245642616 is 616246542.

245642616 is a `hidden beast` number, since 2 + 4 + 5 + 642 + 6 + 1 + 6 = 666.

245642616 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 (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245642611) 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, 1705780 + ... + 1705923.

It is an arithmetic number, because the mean of its divisors is an integer number (27720095).

Almost surely, 2^245642616 is an apocalyptic number.

It is an amenable number.

245642616 is an abundant number, since it is smaller than the sum of its proper divisors (419639664).

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

245642616 is a wasteful number, since it uses less digits than its factorization.

245642616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411715 (or 3411708 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 245642616 is about 15672.9900146717. The cubic root of 245642616 is about 626.2790795298.

The spelling of 245642616 in words is "two hundred forty-five million, six hundred forty-two thousand, six hundred sixteen".