42029257 has 8 divisors (see below), whose sum is σ = 43946496. Its totient is φ = 40119552.

The previous prime is 42029203. The next prime is 42029261. The reversal of 42029257 is 75292024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42029257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42029297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11688 + ... + 14854.

It is an arithmetic number, because the mean of its divisors is an integer number (5493312).

Almost surely, 2^42029257 is an apocalyptic number.

It is an amenable number.

42029257 is a deficient number, since it is larger than the sum of its proper divisors (1917239).

42029257 is a wasteful number, since it uses less digits than its factorization.

42029257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 42029257 is about 6482.9975320063. The cubic root of 42029257 is about 347.6833585415.

The spelling of 42029257 in words is "forty-two million, twenty-nine thousand, two hundred fifty-seven".