42023541 has 32 divisors (see below), whose sum is σ = 69113088. Its totient is φ = 22164480.

The previous prime is 42023537. The next prime is 42023567. The reversal of 42023541 is 14532024.

It is not a de Polignac number, because 42023541 - 2² = 42023537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42023521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17811 + ... + 20031.

It is an arithmetic number, because the mean of its divisors is an integer number (2159784).

Almost surely, 2^42023541 is an apocalyptic number.

It is an amenable number.

42023541 is a deficient number, since it is larger than the sum of its proper divisors (27089547).

42023541 is a wasteful number, since it uses less digits than its factorization.

42023541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42023541 is about 6482.5566715610. The cubic root of 42023541 is about 347.6675961232.

Adding to 42023541 its reverse (14532024), we get a palindrome (56555565).

The spelling of 42023541 in words is "forty-two million, twenty-three thousand, five hundred forty-one".