730642019 has 2 divisors, whose sum is σ = 730642020. Its totient is φ = 730642018.

The previous prime is 730642001. The next prime is 730642027. The reversal of 730642019 is 910246037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730642019 - 2⁸ = 730641763 is a prime.

It is a super-2 number, since 2×730642019² = 1067675519856792722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (730648019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365321009 + 365321010.

It is an arithmetic number, because the mean of its divisors is an integer number (365321010).

Almost surely, 2^730642019 is an apocalyptic number.

730642019 is a deficient number, since it is larger than the sum of its proper divisors (1).

730642019 is an equidigital number, since it uses as much as digits as its factorization.

730642019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 730642019 is about 27030.3906557046. The cubic root of 730642019 is about 900.6752212749.

The spelling of 730642019 in words is "seven hundred thirty million, six hundred forty-two thousand, nineteen".