40762013 has 4 divisors (see below), whose sum is σ = 40782588. Its totient is φ = 40741440.

The previous prime is 40761989. The next prime is 40762031. The reversal of 40762013 is 31026704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11580409 + 29181604 = 3403^2 + 5402^2 .

It is a cyclic number.

It is not a de Polignac number, because 40762013 - 2⁶ = 40761949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40762013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40762093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6956 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (10195647).

Almost surely, 2^40762013 is an apocalyptic number.

It is an amenable number.

40762013 is a deficient number, since it is larger than the sum of its proper divisors (20575).

40762013 is a wasteful number, since it uses less digits than its factorization.

40762013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20574.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40762013 is about 6384.5135288446. The cubic root of 40762013 is about 344.1532493901.

Adding to 40762013 its reverse (31026704), we get a palindrome (71788717).

The spelling of 40762013 in words is "forty million, seven hundred sixty-two thousand, thirteen".