40284936 has 24 divisors (see below), whose sum is σ = 109105230. Its totient is φ = 13428288.

The previous prime is 40284913. The next prime is 40284967. The reversal of 40284936 is 63948204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20304036 + 19980900 = 4506^2 + 4470^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40284936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279685 + ... + 279828.

Almost surely, 2^40284936 is an apocalyptic number.

It is an amenable number.

40284936 is an abundant number, since it is smaller than the sum of its proper divisors (68820294).

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

40284936 is a wasteful number, since it uses less digits than its factorization.

40284936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559525 (or 559518 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 40284936 is about 6347.0415155409. The cubic root of 40284936 is about 342.8053249069.

The spelling of 40284936 in words is "forty million, two hundred eighty-four thousand, nine hundred thirty-six".