541638 has 12 divisors (see below), whose sum is σ = 1173588. Its totient is φ = 180540.

The previous prime is 541631. The next prime is 541657. The reversal of 541638 is 836145.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15028 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (97799).

2⁵⁴¹⁶³⁸ is an apocalyptic number.

541638 is an abundant number, since it is smaller than the sum of its proper divisors (631950).

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

541638 is a wasteful number, since it uses less digits than its factorization.

541638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30099 (or 30096 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 541638 is about 735.9605967713. The cubic root of 541638 is about 81.5147827200.

The spelling of 541638 in words is "five hundred forty-one thousand, six hundred thirty-eight".