245431412244 has 72 divisors (see below), whose sum is σ = 637633691240. Its totient is φ = 79598785536.

The previous prime is 245431412221. The next prime is 245431412273. The reversal of 245431412244 is 442214134542.

245431412244 is a `hidden beast` number, since 2 + 454 + 3 + 141 + 22 + 44 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60885562500 + 184545849744 = 246750^2 + 429588^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 245431412199 and 245431412208.

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, 1756212 + ... + 1890804.

Almost surely, 2^245431412244 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 245431412244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318816845620).

245431412244 is an abundant number, since it is smaller than the sum of its proper divisors (392202278996).

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

245431412244 is a wasteful number, since it uses less digits than its factorization.

245431412244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134714 (or 134635 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

Adding to 245431412244 its reverse (442214134542), we get a palindrome (687645546786).

The spelling of 245431412244 in words is "two hundred forty-five billion, four hundred thirty-one million, four hundred twelve thousand, two hundred forty-four".