42799541 has 4 divisors (see below), whose sum is σ = 43178412. Its totient is φ = 42420672.

The previous prime is 42799529. The next prime is 42799543. The reversal of 42799541 is 14599724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13140625 + 29658916 = 3625^2 + 5446^2 .

It is a cyclic number.

It is not a de Polignac number, because 42799541 - 2¹⁴ = 42783157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42799543) 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, 189266 + ... + 189491.

It is an arithmetic number, because the mean of its divisors is an integer number (10794603).

Almost surely, 2^42799541 is an apocalyptic number.

It is an amenable number.

42799541 is a deficient number, since it is larger than the sum of its proper divisors (378871).

42799541 is a wasteful number, since it uses less digits than its factorization.

42799541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378870.

The product of its digits is 90720, while the sum is 41.

The square root of 42799541 is about 6542.1358133258. The cubic root of 42799541 is about 349.7945488108.

The spelling of 42799541 in words is "forty-two million, seven hundred ninety-nine thousand, five hundred forty-one".