245011642 has 16 divisors (see below), whose sum is σ = 370548864. Its totient is φ = 121500000.

The previous prime is 245011639. The next prime is 245011643. The reversal of 245011642 is 246110542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245011643) 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, 135142 + ... + 136942.

It is an arithmetic number, because the mean of its divisors is an integer number (23159304).

Almost surely, 2^245011642 is an apocalyptic number.

245011642 is a deficient number, since it is larger than the sum of its proper divisors (125537222).

245011642 is a wasteful number, since it uses less digits than its factorization.

245011642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 245011642 is about 15652.8477281292. The cubic root of 245011642 is about 625.7423856725.

The spelling of 245011642 in words is "two hundred forty-five million, eleven thousand, six hundred forty-two".