245257378 has 4 divisors (see below), whose sum is σ = 367886070. Its totient is φ = 122628688.

The previous prime is 245257361. The next prime is 245257403. The reversal of 245257378 is 873752542.

245257378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147306769 + 97950609 = 12137^2 + 9897^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61314343 + ... + 61314346.

Almost surely, 2^245257378 is an apocalyptic number.

245257378 is a deficient number, since it is larger than the sum of its proper divisors (122628692).

245257378 is a wasteful number, since it uses less digits than its factorization.

245257378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122628691.

The product of its digits is 470400, while the sum is 43.

The square root of 245257378 is about 15660.6953230053. The cubic root of 245257378 is about 625.9515132210.

The spelling of 245257378 in words is "two hundred forty-five million, two hundred fifty-seven thousand, three hundred seventy-eight".