40263212 has 24 divisors (see below), whose sum is σ = 77064960. Its totient is φ = 18254160.

The previous prime is 40263211. The next prime is 40263229. The reversal of 40263212 is 21236204.

40263212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40263212² = 3242252481113888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40263211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20489 + ... + 22367.

It is an arithmetic number, because the mean of its divisors is an integer number (3211040).

Almost surely, 2^40263212 is an apocalyptic number.

It is an amenable number.

40263212 is a deficient number, since it is larger than the sum of its proper divisors (36801748).

40263212 is a wasteful number, since it uses less digits than its factorization.

40263212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40263212 is about 6345.3299362602. The cubic root of 40263212 is about 342.7436935822.

Adding to 40263212 its reverse (21236204), we get a palindrome (61499416).

The spelling of 40263212 in words is "forty million, two hundred sixty-three thousand, two hundred twelve".