40655612 has 12 divisors (see below), whose sum is σ = 72048480. Its totient is φ = 20070336.

The previous prime is 40655591. The next prime is 40655617. The reversal of 40655612 is 21655604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40655617) 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, 64013 + ... + 64644.

It is an arithmetic number, because the mean of its divisors is an integer number (6004040).

Almost surely, 2^40655612 is an apocalyptic number.

It is an amenable number.

40655612 is a deficient number, since it is larger than the sum of its proper divisors (31392868).

40655612 is a wasteful number, since it uses less digits than its factorization.

40655612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128740 (or 128738 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40655612 is about 6376.1753426329. The cubic root of 40655612 is about 343.8535409525.

The spelling of 40655612 in words is "forty million, six hundred fifty-five thousand, six hundred twelve".