42758031 has 8 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 28161752.

The previous prime is 42758029. The next prime is 42758033. The reversal of 42758031 is 13085724.

It is an interprime number because it is at equal distance from previous prime (42758029) and next prime (42758033).

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

It is a cyclic number.

It is not a de Polignac number, because 42758031 - 2¹ = 42758029 is a prime.

It is a super-2 number, since 2×42758031² = 3656498429993922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42758031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42758033) 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, 85611 + ... + 86108.

It is an arithmetic number, because the mean of its divisors is an integer number (7212240).

Almost surely, 2^42758031 is an apocalyptic number.

42758031 is a deficient number, since it is larger than the sum of its proper divisors (14939889).

42758031 is a wasteful number, since it uses less digits than its factorization.

42758031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171805.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 42758031 is about 6538.9625323900. The cubic root of 42758031 is about 349.6814271271.

The spelling of 42758031 in words is "forty-two million, seven hundred fifty-eight thousand, thirty-one".