40393012 has 36 divisors (see below), whose sum is σ = 81418176. Its totient is φ = 17387280.

The previous prime is 40393009. The next prime is 40393013. The reversal of 40393012 is 21039304.

It is a super-3 number, since 3×40393012³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40393013) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14613 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (2261616).

Almost surely, 2^40393012 is an apocalyptic number.

It is an amenable number.

40393012 is an abundant number, since it is smaller than the sum of its proper divisors (41025164).

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

40393012 is a wasteful number, since it uses less digits than its factorization.

40393012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 40393012 is about 6355.5497008520. The cubic root of 40393012 is about 343.1116093372. Note that the first 3 decimals are identical.

The spelling of 40393012 in words is "forty million, three hundred ninety-three thousand, twelve".