245044542 has 8 divisors (see below), whose sum is σ = 490089096. Its totient is φ = 81681512.

The previous prime is 245044529. The next prime is 245044559. The reversal of 245044542 is 245440542.

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

245044542 is an admirable number.

It is a congruent 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, 20420373 + ... + 20420384.

It is an arithmetic number, because the mean of its divisors is an integer number (61261137).

Almost surely, 2^245044542 is an apocalyptic number.

245044542 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.

245044542 is a wasteful number, since it uses less digits than its factorization.

245044542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40840762.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 245044542 is about 15653.8986198327. The cubic root of 245044542 is about 625.7703925091.

The spelling of 245044542 in words is "two hundred forty-five million, forty-four thousand, five hundred forty-two".