20044620826240 has 64 divisors (see below), whose sum is σ = 50737946493960. Its totient is φ = 7546210189312.

The previous prime is 20044620826201. The next prime is 20044620826271. The reversal of 20044620826240 is 4262802644002.

It can be written as a sum of positive squares in 4 ways, for example, as 18675327678016 + 1369293148224 = 4321496^2 + 1170168^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 20044620826193 and 20044620826202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921157357 + ... + 921179116.

Almost surely, 2^{20044620826240} is an apocalyptic number.

20044620826240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044620826240 is an abundant number, since it is smaller than the sum of its proper divisors (30693325667720).

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

20044620826240 is a wasteful number, since it uses less digits than its factorization.

20044620826240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842336509 (or 1842336497 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 20044620826240 in words is "twenty trillion, forty-four billion, six hundred twenty million, eight hundred twenty-six thousand, two hundred forty".