42204375 has 80 divisors (see below), whose sum is σ = 81348960. Its totient is φ = 21600000.

The previous prime is 42204373. The next prime is 42204389. The reversal of 42204375 is 57340224.

42204375 is a `hidden beast` number, since 4 + 220 + 437 + 5 = 666.

It is not a de Polignac number, because 42204375 - 2¹ = 42204373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42204373) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 691845 + ... + 691905.

It is an arithmetic number, because the mean of its divisors is an integer number (1016862).

Almost surely, 2^42204375 is an apocalyptic number.

42204375 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42204375 is a deficient number, since it is larger than the sum of its proper divisors (39144585).

42204375 is an equidigital number, since it uses as much as digits as its factorization.

42204375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42204375 is about 6496.4894366111. The cubic root of 42204375 is about 348.1655722219.

Adding to 42204375 its reverse (57340224), we get a palindrome (99544599).

The spelling of 42204375 in words is "forty-two million, two hundred four thousand, three hundred seventy-five".