42829479 has 84 divisors (see below), whose sum is σ = 82237320. Its totient is φ = 22044960.

The previous prime is 42829471. The next prime is 42829499. The reversal of 42829479 is 97492824.

42829479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42829479 - 2³ = 42829471 is a prime.

It is a super-2 number, since 2×42829479² = 3668728542822882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42829471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 392877 + ... + 392985.

Almost surely, 2^42829479 is an apocalyptic number.

42829479 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

42829479 is a deficient number, since it is larger than the sum of its proper divisors (39407841).

42829479 is a wasteful number, since it uses less digits than its factorization.

42829479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 130 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 42829479 is about 6544.4235040223. The cubic root of 42829479 is about 349.8760894705.

The spelling of 42829479 in words is "forty-two million, eight hundred twenty-nine thousand, four hundred seventy-nine".