40993613 has 16 divisors (see below), whose sum is σ = 46085760. Its totient is φ = 36258816.

The previous prime is 40993607. The next prime is 40993627. The reversal of 40993613 is 31639904.

It is a cyclic number.

It is not a de Polignac number, because 40993613 - 2⁴ = 40993597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40993633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22181 + ... + 23957.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^40993613 is an apocalyptic number.

It is an amenable number.

40993613 is a deficient number, since it is larger than the sum of its proper divisors (5092147).

40993613 is a wasteful number, since it uses less digits than its factorization.

40993613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 40993613 is about 6402.6254770992. The cubic root of 40993613 is about 344.8038176096.

The spelling of 40993613 in words is "forty million, nine hundred ninety-three thousand, six hundred thirteen".