245281356 has 18 divisors (see below), whose sum is σ = 620016852. Its totient is φ = 81760440.

The previous prime is 245281339. The next prime is 245281363. The reversal of 245281356 is 653182542.

245281356 is a `hidden beast` number, since 24 + 5 + 281 + 356 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6813371 = 245281356 / (2 + 4 + 5 + 2 + 8 + 1 + 3 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 245281356.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3406650 + ... + 3406721.

Almost surely, 2^245281356 is an apocalyptic number.

It is an amenable number.

245281356 is an abundant number, since it is smaller than the sum of its proper divisors (374735496).

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

245281356 is a wasteful number, since it uses less digits than its factorization.

245281356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813381 (or 6813376 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 245281356 is about 15661.4608514021. The cubic root of 245281356 is about 625.9719116237.

The spelling of 245281356 in words is "two hundred forty-five million, two hundred eighty-one thousand, three hundred fifty-six".