4540236 has 12 divisors (see below), whose sum is σ = 10593912. Its totient is φ = 1513408.

The previous prime is 4540231. The next prime is 4540303. The reversal of 4540236 is 6320454.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4540236² = 41227485871392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4540231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189165 + ... + 189188.

It is an arithmetic number, because the mean of its divisors is an integer number (882826).

Almost surely, 2^4540236 is an apocalyptic number.

It is an amenable number.

4540236 is an abundant number, since it is smaller than the sum of its proper divisors (6053676).

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

4540236 is a wasteful number, since it uses less digits than its factorization.

4540236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378360 (or 378358 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 4540236 is about 2130.7829546906. The cubic root of 4540236 is about 165.5869636637.

The spelling of 4540236 in words is "four million, five hundred forty thousand, two hundred thirty-six".