1630805746 has 16 divisors (see below), whose sum is σ = 2483669664. Its totient is φ = 802979424.

The previous prime is 1630805741. The next prime is 1630805773. The reversal of 1630805746 is 6475080361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1630805699 and 1630805708.

It is not an unprimeable number, because it can be changed into a prime (1630805741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36265 + ... + 67651.

It is an arithmetic number, because the mean of its divisors is an integer number (155229354).

Almost surely, 2^1630805746 is an apocalyptic number.

1630805746 is a deficient number, since it is larger than the sum of its proper divisors (852863918).

1630805746 is a wasteful number, since it uses less digits than its factorization.

1630805746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31785.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1630805746 is about 40383.2359525583. The cubic root of 1630805746 is about 1177.0658081240.

The spelling of 1630805746 in words is "one billion, six hundred thirty million, eight hundred five thousand, seven hundred forty-six".