373940909 has 2 divisors, whose sum is σ = 373940910. Its totient is φ = 373940908.

The previous prime is 373940851. The next prime is 373940933. The reversal of 373940909 is 909049373.

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., 189062500 + 184878409 = 13750^2 + 13597^2 .

It is a cyclic number.

It is not a de Polignac number, because 373940909 - 2¹² = 373936813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 373940909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373940939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186970454 + 186970455.

It is an arithmetic number, because the mean of its divisors is an integer number (186970455).

Almost surely, 2^373940909 is an apocalyptic number.

It is an amenable number.

373940909 is a deficient number, since it is larger than the sum of its proper divisors (1).

373940909 is an equidigital number, since it uses as much as digits as its factorization.

373940909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 373940909 is about 19337.5517840289. The cubic root of 373940909 is about 720.4452679157.

The spelling of 373940909 in words is "three hundred seventy-three million, nine hundred forty thousand, nine hundred nine".