245923385 has 8 divisors (see below), whose sum is σ = 298030536. Its totient is φ = 194790400.

The previous prime is 245923367. The next prime is 245923459. The reversal of 245923385 is 583329542.

It can be written as a sum of positive squares in 4 ways, for example, as 35557369 + 210366016 = 5963^2 + 14504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-245923385 is a prime.

It is a super-2 number, since 2×245923385² = 120956622579716450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242984 + ... + 243993.

It is an arithmetic number, because the mean of its divisors is an integer number (37253817).

Almost surely, 2^245923385 is an apocalyptic number.

It is an amenable number.

245923385 is a deficient number, since it is larger than the sum of its proper divisors (52107151).

245923385 is a wasteful number, since it uses less digits than its factorization.

245923385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487083.

The product of its digits is 259200, while the sum is 41.

The square root of 245923385 is about 15681.9445541680. The cubic root of 245923385 is about 626.5176005724.

The spelling of 245923385 in words is "two hundred forty-five million, nine hundred twenty-three thousand, three hundred eighty-five".