4540438 has 24 divisors (see below), whose sum is σ = 8015112. Its totient is φ = 1923264.

The previous prime is 4540429. The next prime is 4540439. The reversal of 4540438 is 8340454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10270 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (333963).

Almost surely, 2^4540438 is an apocalyptic number.

4540438 is a deficient number, since it is larger than the sum of its proper divisors (3474674).

4540438 is a wasteful number, since it uses less digits than its factorization.

4540438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4540438 is about 2130.8303545801. The cubic root of 4540438 is about 165.5894193416.

The spelling of 4540438 in words is "four million, five hundred forty thousand, four hundred thirty-eight".