42236406 has 48 divisors (see below), whose sum is σ = 94455504. Its totient is φ = 13632192.

The previous prime is 42236399. The next prime is 42236443. The reversal of 42236406 is 60463224.

It is a self number, because there is not a number n which added to its sum of digits gives 42236406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152340 + ... + 152616.

It is an arithmetic number, because the mean of its divisors is an integer number (1967823).

Almost surely, 2^42236406 is an apocalyptic number.

42236406 is an abundant number, since it is smaller than the sum of its proper divisors (52219098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42236406 is a wasteful number, since it uses less digits than its factorization.

42236406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 42236406 is about 6498.9542235655. The cubic root of 42236406 is about 348.2536300069.

The spelling of 42236406 in words is "forty-two million, two hundred thirty-six thousand, four hundred six".