245404542 has 32 divisors (see below), whose sum is σ = 499219200. Its totient is φ = 80407040.

The previous prime is 245404519. The next prime is 245404547.

245404542 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245404547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190633 + ... + 191915.

It is an arithmetic number, because the mean of its divisors is an integer number (15600600).

Almost surely, 2^245404542 is an apocalyptic number.

245404542 is an abundant number, since it is smaller than the sum of its proper divisors (253814658).

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

245404542 is a wasteful number, since it uses less digits than its factorization.

245404542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808.

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

The square root of 245404542 is about 15665.3931326348. The cubic root of 245404542 is about 626.0766866350.

The spelling of 245404542 in words is "two hundred forty-five million, four hundred four thousand, five hundred forty-two".