245427804 has 72 divisors (see below), whose sum is σ = 638977248. Its totient is φ = 79380480.

The previous prime is 245427803. The next prime is 245427821. The reversal of 245427804 is 408724542.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245427803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379009 + ... + 379655.

It is an arithmetic number, because the mean of its divisors is an integer number (8874684).

Almost surely, 2^245427804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245427804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319488624).

245427804 is an abundant number, since it is smaller than the sum of its proper divisors (393549444).

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

245427804 is a wasteful number, since it uses less digits than its factorization.

245427804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 245427804 is about 15666.1355796508. The cubic root of 245427804 is about 626.0964680343.

The spelling of 245427804 in words is "two hundred forty-five million, four hundred twenty-seven thousand, eight hundred four".