20224521340 has 48 divisors (see below), whose sum is σ = 42937255872. Its totient is φ = 8001202176.

The previous prime is 20224521337. The next prime is 20224521341. The reversal of 20224521340 is 4312542202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224521341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4570369 + ... + 4574791.

It is an arithmetic number, because the mean of its divisors is an integer number (894526164).

Almost surely, 2^20224521340 is an apocalyptic number.

20224521340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224521340 is an abundant number, since it is smaller than the sum of its proper divisors (22712734532).

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

20224521340 is a wasteful number, since it uses less digits than its factorization.

20224521340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The spelling of 20224521340 in words is "twenty billion, two hundred twenty-four million, five hundred twenty-one thousand, three hundred forty".