42905541 has 8 divisors (see below), whose sum is σ = 65379904. Its totient is φ = 24517440.

The previous prime is 42905539. The next prime is 42905543. The reversal of 42905541 is 14550924.

It is an interprime number because it is at equal distance from previous prime (42905539) and next prime (42905543).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42905541 - 2¹ = 42905539 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42905499 and 42905508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42905543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021540 + ... + 1021581.

It is an arithmetic number, because the mean of its divisors is an integer number (8172488).

Almost surely, 2^42905541 is an apocalyptic number.

It is an amenable number.

42905541 is a deficient number, since it is larger than the sum of its proper divisors (22474363).

42905541 is a wasteful number, since it uses less digits than its factorization.

42905541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043131.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 42905541 is about 6550.2321332912. The cubic root of 42905541 is about 350.0830850371.

The spelling of 42905541 in words is "forty-two million, nine hundred five thousand, five hundred forty-one".