42003783 has 12 divisors (see below), whose sum is σ = 60730488. Its totient is φ = 27975600.

The previous prime is 42003763. The next prime is 42003799. The reversal of 42003783 is 38730024.

It is not a de Polignac number, because 42003783 - 2⁵ = 42003751 is a prime.

It is a super-2 number, since 2×42003783² = 3528635572622178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13308 + ... + 16158.

It is an arithmetic number, because the mean of its divisors is an integer number (5060874).

Almost surely, 2^42003783 is an apocalyptic number.

42003783 is a deficient number, since it is larger than the sum of its proper divisors (18726705).

42003783 is a wasteful number, since it uses less digits than its factorization.

42003783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42003783 is about 6481.0325566224. The cubic root of 42003783 is about 347.6131005315.

The spelling of 42003783 in words is "forty-two million, three thousand, seven hundred eighty-three".