40980644 has 12 divisors (see below), whose sum is σ = 75490800. Its totient is φ = 19411848.

The previous prime is 40980637. The next prime is 40980647. The reversal of 40980644 is 44608904.

It is not an unprimeable number, because it can be changed into a prime (40980647) 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, 269534 + ... + 269685.

It is an arithmetic number, because the mean of its divisors is an integer number (6290900).

Almost surely, 2^40980644 is an apocalyptic number.

It is an amenable number.

40980644 is a deficient number, since it is larger than the sum of its proper divisors (34510156).

40980644 is a wasteful number, since it uses less digits than its factorization.

40980644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539242 (or 539240 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40980644 is about 6401.6126093352. The cubic root of 40980644 is about 344.7674523319.

The spelling of 40980644 in words is "forty million, nine hundred eighty thousand, six hundred forty-four".