20010454340 has 24 divisors (see below), whose sum is σ = 42074712792. Its totient is φ = 7994132480.

The previous prime is 20010454339. The next prime is 20010454351. The reversal of 20010454340 is 4345401002.

It can be written as a sum of positive squares in 4 ways, for example, as 7896810496 + 12113643844 = 88864^2 + 110062^2 .

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, 611741 + ... + 643620.

It is an arithmetic number, because the mean of its divisors is an integer number (1753113033).

Almost surely, 2^20010454340 is an apocalyptic number.

20010454340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010454340 is an abundant number, since it is smaller than the sum of its proper divisors (22064258452).

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

20010454340 is a wasteful number, since it uses less digits than its factorization.

20010454340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256167 (or 1256165 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20010454340 its reverse (4345401002), we get a palindrome (24355855342).

The spelling of 20010454340 in words is "twenty billion, ten million, four hundred fifty-four thousand, three hundred forty".