42064029 has 28 divisors (see below), whose sum is σ = 72085536. Its totient is φ = 24033672.

The previous prime is 42063979. The next prime is 42064037. The reversal of 42064029 is 92046024.

It is not a de Polignac number, because 42064029 - 2¹³ = 42055837 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42063993 and 42064011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42064039) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 982 + ... + 9224.

Almost surely, 2^42064029 is an apocalyptic number.

It is an amenable number.

42064029 is a deficient number, since it is larger than the sum of its proper divisors (30021507).

42064029 is an frugal number, since it uses more digits than its factorization.

42064029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268 (or 8253 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42064029 is about 6485.6787617026. The cubic root of 42064029 is about 347.7792148893.

The spelling of 42064029 in words is "forty-two million, sixty-four thousand, twenty-nine".