245586642 has 16 divisors (see below), whose sum is σ = 561340992. Its totient is φ = 70167600.

The previous prime is 245586613. The next prime is 245586643. The reversal of 245586642 is 246685542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 5847301 = 245586642 / (2 + 4 + 5 + 5 + 8 + 6 + 6 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 245586594 and 245586603.

It is not an unprimeable number, because it can be changed into a prime (245586643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2923609 + ... + 2923692.

It is an arithmetic number, because the mean of its divisors is an integer number (35083812).

Almost surely, 2^245586642 is an apocalyptic number.

245586642 is an abundant number, since it is smaller than the sum of its proper divisors (315754350).

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

245586642 is a wasteful number, since it uses less digits than its factorization.

245586642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847313.

The product of its digits is 460800, while the sum is 42.

The square root of 245586642 is about 15671.2042294139. The cubic root of 245586642 is about 626.2315063403.

The spelling of 245586642 in words is "two hundred forty-five million, five hundred eighty-six thousand, six hundred forty-two".