42406936 has 64 divisors (see below), whose sum is σ = 98380800. Its totient is φ = 16848000.

The previous prime is 42406933. The next prime is 42406937. The reversal of 42406936 is 63960424.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42406933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20761 + ... + 22711.

It is an arithmetic number, because the mean of its divisors is an integer number (1537200).

Almost surely, 2^42406936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42406936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49190400).

42406936 is an abundant number, since it is smaller than the sum of its proper divisors (55973864).

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

42406936 is a wasteful number, since it uses less digits than its factorization.

42406936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 42406936 is about 6512.0608105269. The cubic root of 42406936 is about 348.7216933813.

The spelling of 42406936 in words is "forty-two million, four hundred six thousand, nine hundred thirty-six".