4540405212 has 96 divisors (see below), whose sum is σ = 13583897600. Its totient is φ = 1284641856.

The previous prime is 4540405187. The next prime is 4540405223. The reversal of 4540405212 is 2125040454.

4540405212 is a `hidden beast` number, since 4 + 5 + 40 + 405 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48714 + ... + 107022.

Almost surely, 2^4540405212 is an apocalyptic number.

4540405212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4540405212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6791948800).

4540405212 is an abundant number, since it is smaller than the sum of its proper divisors (9043492388).

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

4540405212 is a wasteful number, since it uses less digits than its factorization.

4540405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58432 (or 58424 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 4540405212 is about 67382.5289819253. The cubic root of 4540405212 is about 1655.8902074867.

Adding to 4540405212 its reverse (2125040454), we get a palindrome (6665445666).

The spelling of 4540405212 in words is "four billion, five hundred forty million, four hundred five thousand, two hundred twelve".