245857434 has 16 divisors (see below), whose sum is σ = 520639488. Its totient is φ = 77131712.

The previous prime is 245857429. The next prime is 245857439. The reversal of 245857434 is 434758542.

It is an interprime number because it is at equal distance from previous prime (245857429) and next prime (245857439).

It is not an unprimeable number, because it can be changed into a prime (245857439) 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 7 ways as a sum of consecutive naturals, for example, 1205082 + ... + 1205285.

It is an arithmetic number, because the mean of its divisors is an integer number (32539968).

Almost surely, 2^245857434 is an apocalyptic number.

245857434 is an abundant number, since it is smaller than the sum of its proper divisors (274782054).

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

245857434 is a wasteful number, since it uses less digits than its factorization.

245857434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410389.

The product of its digits is 537600, while the sum is 42.

The square root of 245857434 is about 15679.8416446085. The cubic root of 245857434 is about 626.4615896912.

The spelling of 245857434 in words is "two hundred forty-five million, eight hundred fifty-seven thousand, four hundred thirty-four".