42288406 has 4 divisors (see below), whose sum is σ = 63432612. Its totient is φ = 21144202.

The previous prime is 42288383. The next prime is 42288419. The reversal of 42288406 is 60488224.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10572100 + ... + 10572103.

It is an arithmetic number, because the mean of its divisors is an integer number (15858153).

Almost surely, 2^42288406 is an apocalyptic number.

42288406 is a deficient number, since it is larger than the sum of its proper divisors (21144206).

42288406 is a wasteful number, since it uses less digits than its factorization.

42288406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21144205.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 42288406 is about 6502.9536366177. The cubic root of 42288406 is about 348.3964906632.

The spelling of 42288406 in words is "forty-two million, two hundred eighty-eight thousand, four hundred six".