1630403365 has 8 divisors (see below), whose sum is σ = 1958023800. Its totient is φ = 1303296192.

The previous prime is 1630403353. The next prime is 1630403413. The reversal of 1630403365 is 5633040361.

It can be written as a sum of positive squares in 4 ways, for example, as 771561729 + 858841636 = 27777^2 + 29306^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1630403365 - 2¹⁵ = 1630370597 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 121290 + ... + 134059.

It is an arithmetic number, because the mean of its divisors is an integer number (244752975).

Almost surely, 2^1630403365 is an apocalyptic number.

It is an amenable number.

1630403365 is a deficient number, since it is larger than the sum of its proper divisors (327620435).

1630403365 is a wasteful number, since it uses less digits than its factorization.

1630403365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256631.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 1630403365 is about 40378.2536150339. The cubic root of 1630403365 is about 1176.9689913864.

The spelling of 1630403365 in words is "one billion, six hundred thirty million, four hundred three thousand, three hundred sixty-five".