40425212 has 12 divisors (see below), whose sum is σ = 70790496. Its totient is φ = 20199360.

The previous prime is 40425193. The next prime is 40425227. The reversal of 40425212 is 21252404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7412 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (5899208).

Almost surely, 2^40425212 is an apocalyptic number.

It is an amenable number.

40425212 is a deficient number, since it is larger than the sum of its proper divisors (30365284).

40425212 is a wasteful number, since it uses less digits than its factorization.

40425212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628 (or 6626 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40425212 is about 6358.0824153199. The cubic root of 40425212 is about 343.2027576061.

Adding to 40425212 its reverse (21252404), we get a palindrome (61677616).

The spelling of 40425212 in words is "forty million, four hundred twenty-five thousand, two hundred twelve".