40840412 has 6 divisors (see below), whose sum is σ = 71470728. Its totient is φ = 20420204.

The previous prime is 40840403. The next prime is 40840421. The reversal of 40840412 is 21404804.

It is an interprime number because it is at equal distance from previous prime (40840403) and next prime (40840421).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105048 + ... + 5105055.

It is an arithmetic number, because the mean of its divisors is an integer number (11911788).

Almost surely, 2^40840412 is an apocalyptic number.

It is an amenable number.

40840412 is a deficient number, since it is larger than the sum of its proper divisors (30630316).

40840412 is a wasteful number, since it uses less digits than its factorization.

40840412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210107 (or 10210105 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 40840412 is about 6390.6503581404. The cubic root of 40840412 is about 344.3737487315.

The spelling of 40840412 in words is "forty million, eight hundred forty thousand, four hundred twelve".