42450375 has 64 divisors (see below), whose sum is σ = 79252992. Its totient is φ = 20000000.

The previous prime is 42450367. The next prime is 42450379. The reversal of 42450375 is 57305424.

It is not a de Polignac number, because 42450375 - 2³ = 42450367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42450379) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169000 + ... + 169250.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328).

Almost surely, 2^42450375 is an apocalyptic number.

42450375 is a deficient number, since it is larger than the sum of its proper divisors (36802617).

42450375 is a wasteful number, since it uses less digits than its factorization.

42450375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42450375 is about 6515.3952297616. The cubic root of 42450375 is about 348.8407222773.

Adding to 42450375 its reverse (57305424), we get a palindrome (99755799).

The spelling of 42450375 in words is "forty-two million, four hundred fifty thousand, three hundred seventy-five".