245778396 has 12 divisors (see below), whose sum is σ = 573482952. Its totient is φ = 81926128.

The previous prime is 245778361. The next prime is 245778413. The reversal of 245778396 is 693877542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10240755 + ... + 10240778.

It is an arithmetic number, because the mean of its divisors is an integer number (47790246).

Almost surely, 2^245778396 is an apocalyptic number.

It is an amenable number.

245778396 is an abundant number, since it is smaller than the sum of its proper divisors (327704556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245778396 is a wasteful number, since it uses less digits than its factorization.

245778396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20481540 (or 20481538 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 245778396 is about 15677.3210721730. The cubic root of 245778396 is about 626.3944510827.

The spelling of 245778396 in words is "two hundred forty-five million, seven hundred seventy-eight thousand, three hundred ninety-six".