42609455 has 32 divisors (see below), whose sum is σ = 62512128. Its totient is φ = 27244800.

The previous prime is 42609397. The next prime is 42609467. The reversal of 42609455 is 55490624.

It is a happy number.

42609455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42609455 - 2²² = 38415151 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32360 + ... + 33650.

It is an arithmetic number, because the mean of its divisors is an integer number (1953504).

Almost surely, 2^42609455 is an apocalyptic number.

42609455 is a deficient number, since it is larger than the sum of its proper divisors (19902673).

42609455 is a wasteful number, since it uses less digits than its factorization.

42609455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 42609455 is about 6527.5918224105. The cubic root of 42609455 is about 349.2759316760.

The spelling of 42609455 in words is "forty-two million, six hundred nine thousand, four hundred fifty-five".