42067905 has 32 divisors (see below), whose sum is σ = 74003328. Its totient is φ = 20236800.

The previous prime is 42067873. The next prime is 42067913. The reversal of 42067905 is 50976024.

It is not a de Polignac number, because 42067905 - 2⁵ = 42067873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21675 + ... + 23535.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^42067905 is an apocalyptic number.

It is an amenable number.

42067905 is a deficient number, since it is larger than the sum of its proper divisors (31935423).

42067905 is a wasteful number, since it uses less digits than its factorization.

42067905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 42067905 is about 6485.9775670287. The cubic root of 42067905 is about 347.7898966275.

The spelling of 42067905 in words is "forty-two million, sixty-seven thousand, nine hundred five".