42635019 has 16 divisors (see below), whose sum is σ = 65153792. Its totient is φ = 24293088.

The previous prime is 42634961. The next prime is 42635027. The reversal of 42635019 is 91053624.

It is not a de Polignac number, because 42635019 - 2¹³ = 42626827 is a prime.

It is a super-2 number, since 2×42635019² = 3635489690260722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42635119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5112 + ... + 10554.

It is an arithmetic number, because the mean of its divisors is an integer number (4072112).

Almost surely, 2^42635019 is an apocalyptic number.

42635019 is a deficient number, since it is larger than the sum of its proper divisors (22518773).

42635019 is a wasteful number, since it uses less digits than its factorization.

42635019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 42635019 is about 6529.5496781937. The cubic root of 42635019 is about 349.3457683265.

The spelling of 42635019 in words is "forty-two million, six hundred thirty-five thousand, nineteen".