1204402387 has 2 divisors, whose sum is σ = 1204402388. Its totient is φ = 1204402386.

The previous prime is 1204402259. The next prime is 1204402391. The reversal of 1204402387 is 7832044021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1204402387 - 2⁷ = 1204402259 is a prime.

It is a super-2 number, since 2×1204402387² = 2901170219622595538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1204402187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602201193 + 602201194.

It is an arithmetic number, because the mean of its divisors is an integer number (602201194).

Almost surely, 2^1204402387 is an apocalyptic number.

1204402387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204402387 is an equidigital number, since it uses as much as digits as its factorization.

1204402387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1204402387 is about 34704.5009616908. The cubic root of 1204402387 is about 1063.9564927821.

The spelling of 1204402387 in words is "one billion, two hundred four million, four hundred two thousand, three hundred eighty-seven".