4540297212 has 60 divisors (see below), whose sum is σ = 12948265176. Its totient is φ = 1375846560.

The previous prime is 4540297211. The next prime is 4540297213. The reversal of 4540297212 is 2127920454.

4540297212 is a `hidden beast` number, since 4 + 540 + 2 + 97 + 21 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (4540297211) and next prime (4540297213).

It is a super-2 number, since 2×4540297212² = 41228597546589945888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540297211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 633403 + ... + 640530.

Almost surely, 2^4540297212 is an apocalyptic number.

It is an amenable number.

4540297212 is an abundant number, since it is smaller than the sum of its proper divisors (8407967964).

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

4540297212 is a wasteful number, since it uses less digits than its factorization.

4540297212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273960 (or 1273949 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4540297212 is about 67381.7275824834. The cubic root of 4540297212 is about 1655.8770781475.

The spelling of 4540297212 in words is "four billion, five hundred forty million, two hundred ninety-seven thousand, two hundred twelve".