42401618 has 32 divisors (see below), whose sum is σ = 74262528. Its totient is φ = 17784000.

The previous prime is 42401599. The next prime is 42401633. The reversal of 42401618 is 81610424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221903 + ... + 222093.

It is an arithmetic number, because the mean of its divisors is an integer number (2320704).

Almost surely, 2^42401618 is an apocalyptic number.

42401618 is a deficient number, since it is larger than the sum of its proper divisors (31860910).

42401618 is a wasteful number, since it uses less digits than its factorization.

42401618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 42401618 is about 6511.6524784420. The cubic root of 42401618 is about 348.7071157386.

The spelling of 42401618 in words is "forty-two million, four hundred one thousand, six hundred eighteen".