1900030459 has 2 divisors, whose sum is σ = 1900030460. Its totient is φ = 1900030458.

The previous prime is 1900030453. The next prime is 1900030481. The reversal of 1900030459 is 9540300091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1900030459 - 2⁵ = 1900030427 is a prime.

It is a super-2 number, since 2×1900030459² = 7220231490255501362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1900030459.

It is not a weakly prime, because it can be changed into another prime (1900030453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950015229 + 950015230.

It is an arithmetic number, because the mean of its divisors is an integer number (950015230).

Almost surely, 2^1900030459 is an apocalyptic number.

1900030459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900030459 is an equidigital number, since it uses as much as digits as its factorization.

1900030459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1900030459 is about 43589.3388226984. The cubic root of 1900030459 is about 1238.5689480808.

The spelling of 1900030459 in words is "one billion, nine hundred million, thirty thousand, four hundred fifty-nine".