245111742 has 48 divisors (see below), whose sum is σ = 563397120. Its totient is φ = 76798800.

The previous prime is 245111731. The next prime is 245111747. The reversal of 245111742 is 247111542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245111747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42067 + ... + 47537.

It is an arithmetic number, because the mean of its divisors is an integer number (11737440).

Almost surely, 2^245111742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245111742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281698560).

245111742 is an abundant number, since it is smaller than the sum of its proper divisors (318285378).

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

245111742 is a wasteful number, since it uses less digits than its factorization.

245111742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629 (or 5626 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 245111742 is about 15656.0449028482. The cubic root of 245111742 is about 625.8275901742.

The spelling of 245111742 in words is "two hundred forty-five million, one hundred eleven thousand, seven hundred forty-two".