40031412 has 12 divisors (see below), whose sum is σ = 93406656. Its totient is φ = 13343800.

The previous prime is 40031401. The next prime is 40031419. The reversal of 40031412 is 21413004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 40031391 and 40031400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40031419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667964 + ... + 1667987.

It is an arithmetic number, because the mean of its divisors is an integer number (7783888).

Almost surely, 2^40031412 is an apocalyptic number.

It is an amenable number.

40031412 is an abundant number, since it is smaller than the sum of its proper divisors (53375244).

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

40031412 is a wasteful number, since it uses less digits than its factorization.

40031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335958 (or 3335956 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40031412 is about 6327.0381696336. The cubic root of 40031412 is about 342.0846888522.

Adding to 40031412 its reverse (21413004), we get a palindrome (61444416).

The spelling of 40031412 in words is "forty million, thirty-one thousand, four hundred twelve".