40074613 has 6 divisors (see below), whose sum is σ = 40457634. Its totient is φ = 39695184.

The previous prime is 40074571. The next prime is 40074649. The reversal of 40074613 is 31647004.

It can be written as a sum of positive squares in 3 ways, for example, as 25989604 + 14085009 = 5098^2 + 3753^2 .

It is not a de Polignac number, because 40074613 - 2²¹ = 37977461 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 (40074113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10195 + ... + 13567.

It is an arithmetic number, because the mean of its divisors is an integer number (6742939).

Almost surely, 2^40074613 is an apocalyptic number.

It is an amenable number.

40074613 is a deficient number, since it is larger than the sum of its proper divisors (383021).

40074613 is an equidigital number, since it uses as much as digits as its factorization.

40074613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591 (or 3482 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 40074613 is about 6330.4512477390. The cubic root of 40074613 is about 342.2077013143.

The spelling of 40074613 in words is "forty million, seventy-four thousand, six hundred thirteen".