40370329 has 2 divisors, whose sum is σ = 40370330. Its totient is φ = 40370328.

The previous prime is 40370299. The next prime is 40370347. The reversal of 40370329 is 92307304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32752729 + 7617600 = 5723^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 40370329 - 2¹⁹ = 39846041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40370297 and 40370306.

It is not a weakly prime, because it can be changed into another prime (40370399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20185164 + 20185165.

It is an arithmetic number, because the mean of its divisors is an integer number (20185165).

Almost surely, 2^40370329 is an apocalyptic number.

It is an amenable number.

40370329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40370329 is an equidigital number, since it uses as much as digits as its factorization.

40370329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 40370329 is about 6353.7649468642. The cubic root of 40370329 is about 343.0473716755.

The spelling of 40370329 in words is "forty million, three hundred seventy thousand, three hundred twenty-nine".