245402078 has 4 divisors (see below), whose sum is σ = 368103120. Its totient is φ = 122701038.

The previous prime is 245402071. The next prime is 245402083. The reversal of 245402078 is 870204542.

245402078 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 is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245402071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61350518 + ... + 61350521.

It is an arithmetic number, because the mean of its divisors is an integer number (92025780).

Almost surely, 2^245402078 is an apocalyptic number.

245402078 is a deficient number, since it is larger than the sum of its proper divisors (122701042).

245402078 is a wasteful number, since it uses less digits than its factorization.

245402078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122701041.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 245402078 is about 15665.3144877465. The cubic root of 245402078 is about 626.0745912403.

The spelling of 245402078 in words is "two hundred forty-five million, four hundred two thousand, seventy-eight".