40037413 has 4 divisors (see below), whose sum is σ = 43117228. Its totient is φ = 36957600.

The previous prime is 40037401. The next prime is 40037423. The reversal of 40037413 is 31473004.

It is a happy number.

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 2362369 + 37675044 = 1537^2 + 6138^2 .

It is a cyclic number.

It is not a de Polignac number, because 40037413 - 2¹⁷ = 39906341 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 (40037423) 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, 1539888 + ... + 1539913.

It is an arithmetic number, because the mean of its divisors is an integer number (10779307).

Almost surely, 2^40037413 is an apocalyptic number.

It is an amenable number.

40037413 is a deficient number, since it is larger than the sum of its proper divisors (3079815).

40037413 is a wasteful number, since it uses less digits than its factorization.

40037413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079814.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40037413 is about 6327.5123863964. The cubic root of 40037413 is about 342.1017816596.

The spelling of 40037413 in words is "forty million, thirty-seven thousand, four hundred thirteen".