390419629 has 2 divisors, whose sum is σ = 390419630. Its totient is φ = 390419628.

The previous prime is 390419599. The next prime is 390419651. The reversal of 390419629 is 926914093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225810729 + 164608900 = 15027^2 + 12830^2 .

It is a cyclic number.

It is not a de Polignac number, because 390419629 - 2²⁷ = 256201901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390419329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195209814 + 195209815.

It is an arithmetic number, because the mean of its divisors is an integer number (195209815).

Almost surely, 2^390419629 is an apocalyptic number.

It is an amenable number.

390419629 is a deficient number, since it is larger than the sum of its proper divisors (1).

390419629 is an equidigital number, since it uses as much as digits as its factorization.

390419629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 390419629 is about 19759.0391719840. The cubic root of 390419629 is about 730.8763036270.

The spelling of 390419629 in words is "three hundred ninety million, four hundred nineteen thousand, six hundred twenty-nine".