42065419 has 16 divisors (see below), whose sum is σ = 47646720. Its totient is φ = 36792000.

The previous prime is 42065393. The next prime is 42065437. The reversal of 42065419 is 91456024.

It is a cyclic number.

It is not a de Polignac number, because 42065419 - 2¹⁹ = 41541131 is a prime.

It is a super-2 number, since 2×42065419² = 3538998951291122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (42065489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95602 + ... + 96040.

It is an arithmetic number, because the mean of its divisors is an integer number (2977920).

Almost surely, 2^42065419 is an apocalyptic number.

42065419 is a deficient number, since it is larger than the sum of its proper divisors (5581301).

42065419 is a wasteful number, since it uses less digits than its factorization.

42065419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 42065419 is about 6485.7859199946. The cubic root of 42065419 is about 347.7830456191.

The spelling of 42065419 in words is "forty-two million, sixty-five thousand, four hundred nineteen".