42280029 has 16 divisors (see below), whose sum is σ = 68331840. Its totient is φ = 25624080.

The previous prime is 42280013. The next prime is 42280031. The reversal of 42280029 is 92008224.

It is not a de Polignac number, because 42280029 - 2⁴ = 42280013 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 junction number, because it is equal to n+sod(n) for n = 42279984 and 42280011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42280009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70882 + ... + 71475.

It is an arithmetic number, because the mean of its divisors is an integer number (4270740).

Almost surely, 2^42280029 is an apocalyptic number.

It is an amenable number.

42280029 is a deficient number, since it is larger than the sum of its proper divisors (26051811).

42280029 is a wasteful number, since it uses less digits than its factorization.

42280029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142377 (or 142371 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 42280029 is about 6502.3095127808. The cubic root of 42280029 is about 348.3734842775.

The spelling of 42280029 in words is "forty-two million, two hundred eighty thousand, twenty-nine".