42049783 has 2 divisors, whose sum is σ = 42049784. Its totient is φ = 42049782.

The previous prime is 42049769. The next prime is 42049817. The reversal of 42049783 is 38794024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42049783 - 2⁵ = 42049751 is a prime.

It is a super-3 number, since 3×42049783³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42049703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024891 + 21024892.

It is an arithmetic number, because the mean of its divisors is an integer number (21024892).

Almost surely, 2^42049783 is an apocalyptic number.

42049783 is a deficient number, since it is larger than the sum of its proper divisors (1).

42049783 is an equidigital number, since it uses as much as digits as its factorization.

42049783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 42049783 is about 6484.5804027709. The cubic root of 42049783 is about 347.7399491775.

The spelling of 42049783 in words is "forty-two million, forty-nine thousand, seven hundred eighty-three".