245430642 has 8 divisors (see below), whose sum is σ = 490861296. Its totient is φ = 81810212.

The previous prime is 245430637. The next prime is 245430667. The reversal of 245430642 is 246034542.

It is a sphenic number, since it is the product of 3 distinct primes.

245430642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20452548 + ... + 20452559.

It is an arithmetic number, because the mean of its divisors is an integer number (61357662).

Almost surely, 2^245430642 is an apocalyptic number.

245430642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

245430642 is a wasteful number, since it uses less digits than its factorization.

245430642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40905112.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 245430642 is about 15666.2261569275. The cubic root of 245430642 is about 626.0988813101.

The spelling of 245430642 in words is "two hundred forty-five million, four hundred thirty thousand, six hundred forty-two".