245386405 has 24 divisors (see below), whose sum is σ = 330251040. Its totient is φ = 173586240.

The previous prime is 245386397. The next prime is 245386481. The reversal of 245386405 is 504683542.

It is not a de Polignac number, because 245386405 - 2³ = 245386397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73666 + ... + 76924.

It is an arithmetic number, because the mean of its divisors is an integer number (13760460).

Almost surely, 2^245386405 is an apocalyptic number.

It is an amenable number.

245386405 is a deficient number, since it is larger than the sum of its proper divisors (84864635).

245386405 is a wasteful number, since it uses less digits than its factorization.

245386405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3312 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 245386405 is about 15664.8142344555. The cubic root of 245386405 is about 626.0612625350.

The spelling of 245386405 in words is "two hundred forty-five million, three hundred eighty-six thousand, four hundred five".