40034437 has 2 divisors, whose sum is σ = 40034438. Its totient is φ = 40034436.

The previous prime is 40034411. The next prime is 40034447. The reversal of 40034437 is 73443004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30980356 + 9054081 = 5566^2 + 3009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40034437 is a prime.

It is a super-2 number, since 2×40034437² = 3205512291813938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40034447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20017218 + 20017219.

It is an arithmetic number, because the mean of its divisors is an integer number (20017219).

Almost surely, 2^40034437 is an apocalyptic number.

It is an amenable number.

40034437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40034437 is an equidigital number, since it uses as much as digits as its factorization.

40034437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 40034437 is about 6327.2772185198. The cubic root of 40034437 is about 342.0933052534.

The spelling of 40034437 in words is "forty million, thirty-four thousand, four hundred thirty-seven".