40281037 has 2 divisors, whose sum is σ = 40281038. Its totient is φ = 40281036.

The previous prime is 40281023. The next prime is 40281047. The reversal of 40281037 is 73018204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 19660356 = 4541^2 + 4434^2 .

It is a cyclic number.

It is not a de Polignac number, because 40281037 - 2¹¹ = 40278989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40281047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20140518 + 20140519.

It is an arithmetic number, because the mean of its divisors is an integer number (20140519).

Almost surely, 2^40281037 is an apocalyptic number.

It is an amenable number.

40281037 is a deficient number, since it is larger than the sum of its proper divisors (1).

40281037 is an equidigital number, since it uses as much as digits as its factorization.

40281037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40281037 is about 6346.7343571320. The cubic root of 40281037 is about 342.7942650153.

The spelling of 40281037 in words is "forty million, two hundred eighty-one thousand, thirty-seven".