42041761 has 4 divisors (see below), whose sum is σ = 42166852. Its totient is φ = 41916672.

The previous prime is 42041759. The next prime is 42041767. The reversal of 42041761 is 16714024.

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 30691600 + 11350161 = 5540^2 + 3369^2 .

It is a cyclic number.

It is not a de Polignac number, because 42041761 - 2¹ = 42041759 is a prime.

It is a super-2 number, since 2×42041761² = 3535019335962242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42041767) 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, 62040 + ... + 62713.

It is an arithmetic number, because the mean of its divisors is an integer number (10541713).

Almost surely, 2^42041761 is an apocalyptic number.

It is an amenable number.

42041761 is a deficient number, since it is larger than the sum of its proper divisors (125091).

42041761 is a wasteful number, since it uses less digits than its factorization.

42041761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125090.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 42041761 is about 6483.9618290055. The cubic root of 42041761 is about 347.7178345388.

Adding to 42041761 its reverse (16714024), we get a palindrome (58755785).

The spelling of 42041761 in words is "forty-two million, forty-one thousand, seven hundred sixty-one".