20224620240 has 80 divisors (see below), whose sum is σ = 68395997376. Its totient is φ = 4902937600.

The previous prime is 20224620233. The next prime is 20224620313. The reversal of 20224620240 is 4202642202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20224620240.

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 15 ways as a sum of consecutive naturals, for example, 3827781 + ... + 3833060.

Almost surely, 2^20224620240 is an apocalyptic number.

20224620240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224620240 is an abundant number, since it is smaller than the sum of its proper divisors (48171377136).

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

20224620240 is a wasteful number, since it uses less digits than its factorization.

20224620240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7660868 (or 7660862 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 20224620240 in words is "twenty billion, two hundred twenty-four million, six hundred twenty thousand, two hundred forty".