245402133240 has 128 divisors (see below), whose sum is σ = 803326118400. Its totient is φ = 59477214720.

The previous prime is 245402133209. The next prime is 245402133253. The reversal of 245402133240 is 42331204542.

245402133240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 245402133198 and 245402133207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6156414 + ... + 6196146.

It is an arithmetic number, because the mean of its divisors is an integer number (6275985300).

Almost surely, 2^245402133240 is an apocalyptic number.

245402133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245402133240 is an abundant number, since it is smaller than the sum of its proper divisors (557923985160).

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

245402133240 is a wasteful number, since it uses less digits than its factorization.

245402133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44437 (or 44433 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 245402133240 its reverse (42331204542), we get a palindrome (287733337782).

The spelling of 245402133240 in words is "two hundred forty-five billion, four hundred two million, one hundred thirty-three thousand, two hundred forty".