42643035 has 24 divisors (see below), whose sum is σ = 77130144. Its totient is φ = 21753600.

The previous prime is 42643033. The next prime is 42643037. The reversal of 42643035 is 53034624.

It is an interprime number because it is at equal distance from previous prime (42643033) and next prime (42643037).

It is not a de Polignac number, because 42643035 - 2¹ = 42643033 is a prime.

It is a super-2 number, since 2×42643035² = 3636856868022450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42643033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19566 + ... + 21635.

It is an arithmetic number, because the mean of its divisors is an integer number (3213756).

Almost surely, 2^42643035 is an apocalyptic number.

42643035 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42643035 is a deficient number, since it is larger than the sum of its proper divisors (34487109).

42643035 is a wasteful number, since it uses less digits than its factorization.

42643035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41235 (or 41232 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 42643035 is about 6530.1634742172. The cubic root of 42643035 is about 349.3676609730.

Adding to 42643035 its reverse (53034624), we get a palindrome (95677659).

The spelling of 42643035 in words is "forty-two million, six hundred forty-three thousand, thirty-five".