42864629 has 4 divisors (see below), whose sum is σ = 43244076. Its totient is φ = 42485184.

The previous prime is 42864607. The next prime is 42864631. The reversal of 42864629 is 92646824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 42640900 = 473^2 + 6530^2 .

It is a cyclic number.

It is not a de Polignac number, because 42864629 - 2¹² = 42860533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42824629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189554 + ... + 189779.

It is an arithmetic number, because the mean of its divisors is an integer number (10811019).

Almost surely, 2^42864629 is an apocalyptic number.

It is an amenable number.

42864629 is a deficient number, since it is larger than the sum of its proper divisors (379447).

42864629 is a wasteful number, since it uses less digits than its factorization.

42864629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379446.

The product of its digits is 165888, while the sum is 41.

The square root of 42864629 is about 6547.1084457186. The cubic root of 42864629 is about 349.9717773161.

The spelling of 42864629 in words is "forty-two million, eight hundred sixty-four thousand, six hundred twenty-nine".