40086437 has 2 divisors, whose sum is σ = 40086438. Its totient is φ = 40086436.

The previous prime is 40086419. The next prime is 40086443. The reversal of 40086437 is 73468004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38950081 + 1136356 = 6241^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 40086437 - 2¹⁴ = 40070053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40086037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20043218 + 20043219.

It is an arithmetic number, because the mean of its divisors is an integer number (20043219).

Almost surely, 2^40086437 is an apocalyptic number.

It is an amenable number.

40086437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40086437 is an equidigital number, since it uses as much as digits as its factorization.

40086437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40086437 is about 6331.3850775324. The cubic root of 40086437 is about 342.2413540907.

The spelling of 40086437 in words is "forty million, eighty-six thousand, four hundred thirty-seven".