42504245 has 8 divisors (see below), whose sum is σ = 58291584. Its totient is φ = 29145744.

The previous prime is 42504239. The next prime is 42504247. The reversal of 42504245 is 54240524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42504245 - 2⁶ = 42504181 is a prime.

It is a super-2 number, since 2×42504245² = 3613221686040050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42504247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607169 + ... + 607238.

It is an arithmetic number, because the mean of its divisors is an integer number (7286448).

Almost surely, 2^42504245 is an apocalyptic number.

It is an amenable number.

42504245 is a deficient number, since it is larger than the sum of its proper divisors (15787339).

42504245 is a wasteful number, since it uses less digits than its factorization.

42504245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214419.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 42504245 is about 6519.5279737110. The cubic root of 42504245 is about 348.9882208267.

Adding to 42504245 its reverse (54240524), we get a palindrome (96744769).

The spelling of 42504245 in words is "forty-two million, five hundred four thousand, two hundred forty-five".