202244042440 has 64 divisors (see below), whose sum is σ = 503409064320. Its totient is φ = 72507456000.

The previous prime is 202244042401. The next prime is 202244042459. The reversal of 202244042440 is 44240442202.

It is a junction number, because it is equal to n+sod(n) for n = 202244042399 and 202244042408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205701 + ... + 3268180.

It is an arithmetic number, because the mean of its divisors is an integer number (7865766630).

Almost surely, 2^202244042440 is an apocalyptic number.

202244042440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202244042440 is an abundant number, since it is smaller than the sum of its proper divisors (301165021880).

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

202244042440 is a wasteful number, since it uses less digits than its factorization.

202244042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473974 (or 6473970 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 202244042440 its reverse (44240442202), we get a palindrome (246484484642).

The spelling of 202244042440 in words is "two hundred two billion, two hundred forty-four million, forty-two thousand, four hundred forty".