42049761 has 8 divisors (see below), whose sum is σ = 60379200. Its totient is φ = 25876752.

The previous prime is 42049757. The next prime is 42049769. The reversal of 42049761 is 16794024.

It is a happy number.

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

It is not a de Polignac number, because 42049761 - 2² = 42049757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42049769) 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, 539061 + ... + 539138.

It is an arithmetic number, because the mean of its divisors is an integer number (7547400).

Almost surely, 2^42049761 is an apocalyptic number.

It is an amenable number.

42049761 is a deficient number, since it is larger than the sum of its proper divisors (18329439).

42049761 is a wasteful number, since it uses less digits than its factorization.

42049761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078215.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 42049761 is about 6484.5787064388. The cubic root of 42049761 is about 347.7398885329.

The spelling of 42049761 in words is "forty-two million, forty-nine thousand, seven hundred sixty-one".