42204547 has 16 divisors (see below), whose sum is σ = 54319104. Its totient is φ = 31824000.

The previous prime is 42204527. The next prime is 42204553. The reversal of 42204547 is 74540224.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42204547 - 2⁷ = 42204419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42204527) 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, 6454 + ... + 11227.

It is an arithmetic number, because the mean of its divisors is an integer number (3394944).

Almost surely, 2^42204547 is an apocalyptic number.

42204547 is a deficient number, since it is larger than the sum of its proper divisors (12114557).

42204547 is a wasteful number, since it uses less digits than its factorization.

42204547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17730.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 42204547 is about 6496.5026745165. The cubic root of 42204547 is about 348.1660451934.

It can be divided in two parts, 4 and 2204547, that multiplied together give a palindrome (8818188).

The spelling of 42204547 in words is "forty-two million, two hundred four thousand, five hundred forty-seven".