201452504340 has 48 divisors (see below), whose sum is σ = 564223568832. Its totient is φ = 53705757696.

The previous prime is 201452504327. The next prime is 201452504347. The reversal of 201452504340 is 43405254102.

It is a super-2 number, since 2×201452504340² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 201452504298 and 201452504307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201452504347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247114 + ... + 681153.

It is an arithmetic number, because the mean of its divisors is an integer number (11754657684).

Almost surely, 2^201452504340 is an apocalyptic number.

201452504340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201452504340 is an abundant number, since it is smaller than the sum of its proper divisors (362771064492).

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

201452504340 is a wasteful number, since it uses less digits than its factorization.

201452504340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931896 (or 931894 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 201452504340 its reverse (43405254102), we get a palindrome (244857758442).

The spelling of 201452504340 in words is "two hundred one billion, four hundred fifty-two million, five hundred four thousand, three hundred forty".