245004638 has 4 divisors (see below), whose sum is σ = 367506960. Its totient is φ = 122502318.

The previous prime is 245004619. The next prime is 245004647. The reversal of 245004638 is 836400542.

245004638 is digitally balanced in base 3, 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 super-2 number, since 2×245004638² = 120054545283022088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 61251158 + ... + 61251161.

It is an arithmetic number, because the mean of its divisors is an integer number (91876740).

Almost surely, 2^245004638 is an apocalyptic number.

245004638 is a deficient number, since it is larger than the sum of its proper divisors (122502322).

245004638 is a wasteful number, since it uses less digits than its factorization.

245004638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122502321.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 245004638 is about 15652.6239972728. The cubic root of 245004638 is about 625.7364230423.

The spelling of 245004638 in words is "two hundred forty-five million, four thousand, six hundred thirty-eight".